Airworthiness Directive · Amendment 39-13922 · Rolls-Royce Deutschland (RRD) (Formerly Rolls-Royce, plc) Tay 611-8, Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 Turbofan Engines
Rolls-Royce Deutschland (RRD) (Formerly Rolls-Royce, plc) Tay 611-8, Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 Turbofan Engines
Superseded. A later AD replaced this one: AD 2007-26-19. Comply with the one in force.
This AD applies to RRD Tay 611-8, Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 turbofan engines that have one or more ice-impact panels installed in the low pressure (LP) compressor case that conform to the Rolls-Royce, plc (RR) Service Bulletin (SB) No. TAY-72-1326 standard. These engines are installed on, but not limited to, Fokker F.28 Mk.0070 and Mk.0100 series airplanes, Gulfstream Aerospace G-IV series airplanes, and Boeing Company 727-100 series airplanes modified in accordance with Supplemental Type Certificate SA8472SW (727-QF).
The FAA is superseding an existing airworthiness directive (AD) for certain RRD Tay 611-8, Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 turbofan engines with ice-impact panels installed in the low pressure (LP) compressor case. That AD currently requires visually inspecting all ice-impact panels and fillers in the LP compressor case for certain conditions, and if necessary, replacing any ice-impact panels and fillers that have those conditions. This AD requires initial and repetitive visual inspections of all ice-impact panels and fillers in the LP compressor case for certain conditions and replacing as necessary, any or all panels. This AD also introduces a new compliance date of no later than March 1, 2005, to have all but one engine on each airplane in compliance with the polysulfide bonding of panels. This AD results from RRD issuing two service bulletins since AD 2004-05-22 was published, that required repetitive visual inspections of panels, and defines a minimum configuration and repair standard. We are issuing this AD to prevent release of ice-impact panels due to improper bonding that can result in loss of thrust in both engines.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
For airplanes that have one Tay 620-15, Tay 620-15/20, Tay 650-15, or Tay 650-15/10 engine with ice-impact panels incorporated by the RR SB No. TAY-72-1326 standard, and not all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648, or HRS3649, do the following:
(1) Within 500 cycles-in-service (CIS) after the effective date of this AD, but no later than February 15, 2005, inspect the ice-impact panels and the surrounding fillers. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
| If: | Then: |
|---|---|
| (a) Any movement or rocking motion of LP compressor ice-impact panel, or any movement of the front edge of ice-impact panel | Before further flight, replace all panels using repair scheme HRS3648 or HRS3649. |
| (b) Reappearing signs of moisture on the ice-impact panel or the surrounding filler | Before further flight, replace all panels using repair scheme HRS3648 or HRS3649. |
| (c) Any dents or impact damage on the ice-impact panel that is greater than 3.1 square inch in total | Before further flight, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (d) Any dents or impact damage on the ice-impact panel that is between 1.55 square inch and 3.1 square inch in total | Within 5 flight cycles or 5 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (e) Any dents or impact damage on the ice-impact panel that is less than 1.55 square inch in total | Within 50 flight cycles or 50 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (f) Any crack appears on the ice-impact panel and there is visible distortion of the airwashed surface | Within 50 flight cycles or 50 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (g) Any crack appears on the ice-impact panel and there is no visible distortion of the airwashed surface | Within 150 flight cycles or 150 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (h) Delamination or peeling of the compound layers of the airwashed surface and the penetrated area is greater than 3.1 square inch in total | Before further flight, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (i) Delamination or peeling of the compound layers of the airwashed surface and the penetrated area is between 1.55 square inch and 3.1 square inch in total | Within 5 cycles or 5 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (j) Delamination or peeling of the compound layers of the airwashed surface and the penetrated area is less than 1.55 square inch in total | Within 50 cycles or 50 flight hours, whichever occurs first, replace the damaged panel using repair scheme HRS3648 or HRS3649. |
| (k) Delamination or peeling of the compound layers but the airwashed surface is not penetrated | Within 150 flight cycles or 150 flight hours, whichever occurs first, repair the damaged panel using repair scheme HRS3630. |
| (l) Missing filler surrounding the LP compressor case | Before further flight, repair the damaged filler using repair scheme HRS3630. |
| (m) Damage to the filler surrounding the LP compressor case such as chipped, cracked, or missing material | Within 25 flight cycles or 25 flight hours, whichever occurs first, repair damaged filler using repair scheme HRS 3630. |
(2) Re-inspect within every 500 cycles-since-last-inspection (CSLI) or two months since-last-inspection, whichever occurs first. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(g) For airplanes that have two Tay 620-15, Tay 620-15/20, Tay 650-15, or Tay 650-15/10 engines with ice-impact panels incorporated by the RR SB No. TAY-72-1326 standard, and not all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648, or HRS3649, do the following:
(1) Before further flight, inspect the ice-impact panels and the surrounding fillers on at least one of the affected engines. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(2) Within 60 CIS after the effective date of this AD, but no later than January 15, 2005, inspect the remaining engine ice-impact panels and the surrounding fillers. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(3) Re-inspect one of the affected engines on the airplane, within every 250 CSLI or one month since-last-inspection, whichever occurs first. Thereafter, alternate the repetitive inspections between the two engines. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(h) Before March 1, 2005, rework all six ice-impact panels using repair scheme HRS3648 or HRS3649 on at least one of the affected engines.
(i) After complying with paragraph (h) of this AD, re-inspect the engine not reworked, using the intervals in paragraph (f)(2) of this AD.
For airplanes that have one Tay 651-54 engine with ice-impact panels incorporated by the RR SB No. TAY-72-1326 standard, and not all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648, or HRS3649, do the following:
(1) Within 30 CIS after the effective date of this AD, inspect the ice-impact panels and the surrounding fillers on the affected engine. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(2) Re-inspect the affected engine within every 500 CSLI or six months since-last-inspection, whichever occurs first. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(k) For airplanes that have more than one Tay 651-54 engine with ice-impact panels incorporated by the RR SB No. TAY-72-1326 standard, and not all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648, or HRS3649, do the following:
(1) Before further flight, inspect the ice-impact panels and the surrounding fillers on at least one of the engines affected. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(2) Within 30 CIS after the effective date of this AD, inspect the ice-impact panels and the surrounding fillers on the remaining engine. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(3) Re-inspect at least one of the affected engines within every 250 CSLI or three months since-last inspection, whichever occurs first. Use paragraph 3.E of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(l) Before March 1, 2005, rework all six ice-impact panels using RR repair scheme HRS3648 or HRS3649 on at least one of the affected engines.
(m) After complying with paragraph (l) of this AD, re-inspect the engine not reworked, using the intervals in paragraph (j)(2) of this AD.
For Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 engines with ice-impact panels incorporated by the RRD SB No. SB 72-1326 standard, and all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648 or HRS3649, do the following:
(1) Re-inspect within every 1,500 CSLI, for the condition of the ice-impact panels and the surrounding fillers.
(2) Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
For airplanes that have one Tay 611-8 engine with ice-impact panels incorporated by the RR SB No. TAY-72-1326 standard, and RR repair scheme HRS3491 or HRS3615 was done with two pack epoxy (Omat 8/52) on one or more of the six ice-impact panels, do the following:
(1) Within 450 flight hours after the effective date of this AD, inspect the ice-impact panels on the affected engine. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(2) Re-inspect the ice impact panels within every 1,000 CSLI or six months since-last-inspection, whichever occurs first, Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(p) For airplanes with both Tay 611-8 engines with ice-impact panels incorporated with the RR SB No. TAY-72-1326 standard, and RR repair scheme HRS3491 or HRS3615 was done with two pack epoxy (Omat 8/52) on one or more of the six ice-impact panels on the affected engines, do the following:
(1) Within 150 flight hours after the effective date of this AD, inspect the ice-impact panels on one of the affected engines. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(2) Within 450 flight hours after the effective date of this AD, inspect the ice-impact panels on the remaining engine. Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
(3) Re-inspect the ice impact panels within every 500 CSLI or three months since-last-inspection, whichever occurs first, Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD, on at least one of the affected engines.
(q) Before March 1, 2005, rework all six ice-impact panels using RR repair scheme HRS3648, or HRS3649 on at least one of the affected engines.
(r) After complying with paragraph (q) of this AD, re-inspect the engine not reworked, using the intervals in paragraph (o)(2) of this AD.
For Tay 611-8 engines with ice-impact panels incorporated by the RRD SB No. SB 72-1326 standard and all panels were repaired using polysulfide bonding material by RR repair scheme TV5451R, HRS3491, HRS3615, HRS3648 or HRS3649, or panels were introduced since new production, do the following:
(1) Re-inspect within every 3,000 CSLI, for the condition of the ice-impact panels and the surrounding fillers.
(2) Use paragraph 3.E. of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004, and the inspection disposition criteria in Table 1 of this AD.
After the effective date of this AD, do not install any Tay 620-15, Tay 620-15/20, Tay 650-15, Tay 650-15/10, and Tay 651-54 engines with ice-impact panels if:
(1) Those ice-impact panels incorporate the RR SB No. TAY-72-1326 standard; and
(2) Ice-impact panels were repaired using RR repair scheme TV5451R, HRS3491, or HRS3615 and bonding material other than polysulfide; unless
(3) The panels and the surrounding fillers are inspected for condition using 3.B. through 3.D.(3) (in-service) or 3.K.(1) through 3.(M)(3) (at overhaul or shop visit) of the Accomplishment Instructions of RRD SB No. TAY-72-1638, Revision 2, dated September 21, 2004.
(u) Perform repetitive inspections as specified in paragraph (n) of this AD.
(v) After the effective date of this AD, do not install any Tay 611-8 engine with ice-impact panels if:
(1) Those ice-impact panels incorporate the RR SB No. TAY-72-1326 standard; and
(2) Ice-impact panels were repaired using RR repair scheme TV5451R, HRS3491, or HRS3615 and bonding material other than polysulfide, unless
(3) The panels and the surrounding fillers are inspected for condition using 3.B. through 3.D.(2) (in-service) or 3.K.(1) through 3.M.(3) (at overhaul or shop visit) of the Accomplishment Instructions of RRD SB No. TAY-72-1639, Revision 2, dated September 21, 2004.
(w) Perform repetitive inspections as specified in paragraph (s) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
