Airworthiness Directive · Amendment 39-14511 · Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes
Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes
This AD applies to the Cessna airplanes listed in Table 1 of this AD, certificated in any category.
| Airplane model(s) | Serial Nos. |
|---|---|
| 500 and 501 | 0001 through 0689 inclusive. |
| S550 | 0001 through 0160 inclusive. |
| 550 and 551 | 0002 through 0733 inclusive. |
| 550 | 0801 through 1075 inclusive. |
| 560 | 0001 through 0648 inclusive. |
The FAA is adopting a new airworthiness directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 560 airplanes. This AD requires revising the airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions; installing a placard; doing other specified investigative and corrective actions as necessary; and modifying the boost pumps. This AD also requires the subsequent removal of the AFM revision and placard. This AD results from a report of a chafed electrical wiring harness, which was arcing inside the fuel tank. We are issuing this AD to prevent potential fuel vapor ignition in a fuel tank, which could result in explosion and loss of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
The term “service bulletin” as used in this AD refers to the applicable service bulletin listed in Table 2 of this AD.
| For Cessna model— | Having serial Nos.— | Use Cessna service bulletin— | Dated— |
|---|---|---|---|
| 500 and 501 airplanes | 0001-0689 | SB500-28-12 | June 14, 2004. |
| S550 airplanes | 0001-0160 | SBS550-28-08 | May 7, 2004. |
| 550 and 551 airplanes | 0002-0733 | SB550-28-14 | December 2, 2003. |
| 550 airplanes | 0801-1075 | SB550-28-15 | January 20, 2004. |
| 560 airplanes | 0001-0538 | SB560-28-10 | April 23, 2004. |
| 560 airplanes | 0539-0648 | SB560-28-11 | March 12, 2004. |
Within 25 flight hours after the effective date of this AD: Revise the Limitations section of the applicable Cessna airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions, by inserting the applicable temporary change identified in Cessna Service Bulletin SB550-28-14, dated December 2, 2003, or identified in Table 3 of this AD.
| Cessna temporary change— | Dated— | To the— |
|---|---|---|
| 500FM TC-R57-01 | April 5, 2004 | Cessna Model 500 AFM. |
| 500FM TC-R57-02 | April 5, 2004 | Cessna Model 500 AFM. |
| 500FM TC-R57-03 | April 5, 2004 | Cessna Model 500 AFM. |
| 55BFM TC-R10-07 | March 17, 2004 | Cessna Model 550 Citation Bravo AFM. |
| 55BFM TC-R10-08 | March 17, 2004 | Cessna Model 550 Citation Bravo AFM. |
| 55BFM TC-R10-09 | March 17, 2004 | Cessna Model 550 Citation Bravo AFM. |
| 560FM TC-RC13-01 | March 4, 2004 | Cessna Model 560 Citation V AFM. |
| 560FM TC-RC13-02 | March 4, 2004 | Cessna Model 560 Citation V AFM. |
| 560FM TC-RC13-03 | March 4, 2004 | Cessna Model 560 Citation V AFM. |
| 56FMA TC-04-01 | March 4, 2004 | Cessna Model 560 CItation Ultra AFM. |
| 56FMA TC-04-02 | March 4, 2004 | Cessna Model 560 Citation Ultra AFM. |
| 56FMA TC-04-03 | March 4, 2004 | Cessna Model 560 Citation Ultra AFM. |
| 56FMB TC-R03-10 | March 12, 2004 | Cessna Model 560 AFM. |
| 56FMB TC-R03-11 | March 12, 2004 | Cessna Model 560 AFM. |
| 56FMB TC-R03-12 | March 12, 2004 | Cessna Model 560 AFM. |
| S55CA TC-04-01 | July 8, 2004 | Cessna Model S550 Citation S/II AFM. |
| S55CA TC-04-02 | July 8, 2004 | Cessna Model S550 Citation S/II AFM. |
| S55CA TC-04-03 | July 8, 2004 | Cessna Model S550 Citation S/II AFM. |
| S55FM TC-04-01 | March 4, 2004 | Cessna Model S550 Citation S/II AFM. |
| S55FM TC-04-02 | March 4, 2004 | Cessna Model S550 Citation S/II AFM. |
| S55FM TC-04-03 | March 4, 2004 | Cessna Model S550 Citation S/II AFM. |
Within 25 flight hours after the effective date of this AD: Install a placard close to the fuel quantity gauge, in accordance with the Accomplishment Instructions of the service bulletin. In addition to the specifications in the service bulletin, the letters on the placard must be at least 1/4 -inch tall.
(i) Within 300 flight hours after the effective date of this AD: Do the actions specified in paragraphs (i)(1) and (i)(2) of this AD in accordance with the Accomplishment Instructions of the service bulletin.
(1) Do a detailed inspection for chafed wiring of the wing fuel boost pumps, and, before further flight thereafter, do all applicable corrective and other specified actions.
(2) Modify the wing fuel boost pumps.
Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.”
(j) Before further flight after the inspection and modification required by paragraph (i) of this AD, remove the AFM temporary change and placard required by paragraphs (g) and (h) of this AD.
Although the service bulletin specifies to submit certain information to the manufacturer, this AD does not include that requirement.
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.
