Airworthiness Directive · Amendment 39-14871 · Boeing Model 707-100 Long Body, -100B Long Body, -100B Short Body, -E3F, -300, -300B, and -300C Series Airplanes; Model 727-100 and -200 Series Airplanes; Model 737-200, -200C, -300, -400, and -500 Series Airplanes; Model 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SR, and 747SP Series Airplanes; Model 757-200 and 757-200PF Series Airplanes; and
Boeing Model 707-100 Long Body, -100B Long Body, -100B Short Body, -E3F, -300, -300B, and -300C Series Airplanes; Model 727-100 and -200 Series Airplanes; Model 737-200, -200C, -300, -400, and -500 Series Airplanes; Model 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SR, and 747SP Series Airplanes; Model 757-200 and 757-200PF Series Airplanes; and
This AD applies to airplanes, certificated in any category, as identified in Table 1 of this AD; equipped with any observer or attendant seat.
| Boeing— | As identified in Boeing— |
|---|---|
| (1) Model 707-100 long body, 707-100B long body, 707-100B short body, 707-E3F, 707-300, 707-300B, and 707-300C series airplanes | Service Bulletin 3499, Revision 1, dated May 17, 2001. |
| (2) Model 727-100 and 727-200 series airplanes | Service Bulletin 727-25-0295, Revision 2, dated February 6, 2003. |
| (3) Model 737-200, 737-200C, 737-300, 737-400, and 737-500 series airplanes | Special Attention Service Bulletin 737-25-1412, Revision 3, dated December 2, 2004. |
| (4) Model 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SR, and 747SP series airplanes | Service Bulletin 747-25-3244, Revision 4, dated June 26, 2003. |
| (5) Model 757-200 and 757-200PF series airplanes | Service Bulletin 757-25-0223, Revision 1, dated May 17, 2001. |
| (6) Model 767-200 and 767-300 series airplanes | Special Attention Service Bulletin 767-25-0288, Revision 3, dated August 1, 2002. |
The FAA is superseding two existing airworthiness directives (AD), which apply to certain Boeing airplanes as specified above. Those ADs currently require inspection of the attachment of the shoulder restraint harness to the mounting bracket on certain observer and attendant seats to determine if a C-clip is used in the attachment, and corrective action if necessary. This new AD removes certain airplanes from the applicability of one existing AD and adds other airplanes. We also determined that this new AD refers to identical revisions of certain service information cited by another existing AD. This AD results from the determination that some airplanes had been inadvertently included in or excluded from the applicability of one existing AD and that certain additional new airplanes are now subject to the identified unsafe condition. We are issuing this AD to prevent detachment of the shoulder restraint harness of the attendant or observer seat from its mounting bracket during service, which could result in injury to the occupant of the seat.
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 identified in Table 2 of this AD, excluding airplanes having variable numbers PW001 through PW054 inclusive, PW091, PW092, PW093, and PW094: Within 36 months after January 4, 2002 (the effective date of AD 2001-24-02), do a one-time general visual inspection of the attachment of the shoulder restraint harness of each observer or attendant seat to determine if a C-clip is used in the attachment. Do the inspection according to the applicable service bulletin identified in Table 3 of this AD. If the shoulder harness is looped through the bracket and attached to itself with a C-clip, do paragraph (f)(1) or (f)(2) of this AD. If the inspection required by paragraph (f) of this AD is done after the effective date of this AD, paragraph (f)(1) or (f)(2), if required, must be done before further flight after the inspection required by paragraph (f) of this AD.
| Boeing— | As identified in Boeing— |
|---|---|
| Model 707-100 long body, 707-100B long body, 707-100B short body, 707-E3F, 707-300, 707-300B, and 707-300C series airplanes | Service Bulletin 3499, Revision 1, dated May 17, 2001. |
| Model 727-100 and 727-200 series airplanes | Service Bulletin 727-25-0295, Revision 1, dated May 17, 2001. |
| Model 737-200, -200C, -300, -400, and -500 series airplanes | Special Attention Service Bulletin 737-25-1412, Revision 1, dated May 17, 2001. |
| Model 747SR, 747SP, and 747-100B, -200B, -200C, -200F, -300, -400, and -400D series airplanes | Service Bulletin 747-25-3244, Revision 1, dated May 17, 2001. |
| Model 757-200 and 757-200PF series airplanes | Service Bulletin 757-25-0223, Revision 1, dated May 17, 2001. |
| Model 767-200 and -300 series airplanes | Service Bulletin 767-25-0288, Revision 1, dated May 17, 2001. |
(1) Remove and discard the C-clip, and reattach the shoulder harness to the mounting bracket, according to the service bulletin. Accomplishment of these actions before the effective date of this AD according to the applicable service bulletin version identified in Table 4 of this AD is also acceptable for compliance with the requirements of paragraph (f)(1) of this AD.
(2) Install a second C-clip with the clip's opening positioned in the opposite direction of the opening of the existing C-clip, according to the optional method described in Steps 19 and 20 of Figure 1 or 2 of the applicable service bulletin.
For airplanes identified in paragraphs (c)(4) and (c)(6) of this AD: Within 36 months after October 21, 2003 (the effective date of AD 2003-20-08), do a one-time general visual inspection of the attachment of the shoulder restraint harness of each observer or attendant seat to determine if a C-clip is used in the attachment. Do the inspection according to the applicable service bulletin identified in Table 3 of this AD. If the shoulder harness is looped through the bracket and attached to itself with a C-clip, do paragraph (g)(1) or (g)(2) of this AD. If the inspection required by paragraph (g) of this AD is done after the effective date of this AD, paragraph (g)(1) or (g)(2) of this AD, if required, must be done before further flight after the inspection required by paragraph (g) of this AD.
(1) Remove and discard the C-clip, and reattach the shoulder harness to the mounting bracket, according to the service bulletin. Accomplishment of these actions before the effective date of this AD according to the applicable service bulletin version identified in Table 4 of this AD is also acceptable for compliance with the requirements of paragraph (g)(1) of this AD.
(2) Install a second C-clip with the clip's opening positioned in the opposite direction of the opening of the existing C-clip, according to the optional method described in Steps 19 and 20 of Figure 1 or 2 of the applicable service bulletin.
Removing and discarding the C-clip and reattaching the shoulder harness to the mounting bracket, according to Boeing Service Bulletin 747-25-3244, Revision 1, dated May 17, 2001, Revision 2, dated April 25, 2002, Revision 3, dated August 1, 2002, or Revision 4, dated June 26, 2003; or Boeing Service Bulletin 767-25-0288, Revision 1, dated May 17, 2001, or Revision 2, dated April 25, 2002; as applicable; is acceptable for compliance with the requirements of paragraph (g)(1) of this AD.
(i) For Model 737-200, -200C, -300, -400, and -500 series airplanes with variable numbers PW231 through PW252 inclusive: Within 36 months after the effective date of this AD, do a one-time general visual inspection of the attachment of the shoulder restraint harness of each observer or attendant seat to determine if a C-clip is used in the attachment. Do the inspection according to the applicable service bulletin identified in Table 3 of this AD. If the shoulder harness is looped through the bracket and attached to itself with a C-clip, do paragraph (i)(1) or (i)(2) of this AD before further flight.
(1) Remove and discard the C-clip, and reattach the shoulder harness to the mounting bracket, according to the service bulletin. Accomplishment of these actions before the effective date of this AD according to the applicable service bulletin version identified in Table 4 of this AD is also acceptable for compliance with the requirements of paragraph (i)(1) of this AD.
(2) Install a second C-clip with the clip's opening positioned in the opposite direction of the opening of the existing C-clip, according to the optional method described in Steps 19 and 20 of Figure 1 or 2 of the applicable service bulletin.
| Model | Boeing |
|---|---|
| 707-100 long body, -100B long body, -100B short body, -E3F, -300, -300B, and -300C series airplanes | Service Bulletin 3499, Revision 1, dated May 17, 2001. |
| 727-100 and -200 series airplanes | Service Bulletin 727-25-0295, Revision 1, dated May 17, 2001; or Service Bulletin 727-25-0295, Revision 2, dated February 6, 2003. |
| 737-200, -200C, -300, -400, and -500 series airplanes | Service Bulletin 737-25-1412, Revision 1, dated May 17, 2001; or Special Attention Service Bulletin 737-25-1412, Revision 2, dated September 18, 2003; or Special Attention Service Bulletin 737-25-1412, Revision 3, dated December 2, 2004. |
| 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SR, and 747SP series airplanes | Service Bulletin 747-25-3244, Revision 1, dated May 17, 2001; or Service Bulletin 747-25-3244, Revision 2, dated April 25, 2002; or Special Attention Service Bulletin 747-25-3244, Revision 3, dated August 1, 2002; or Service Bulletin 747-25-3244, Revision 4, dated June 26, 2003. |
| 757-200 and 757-200PF series airplanes | Service Bulletin 757-25-0223, Revision 1, dated May 17, 2001. |
| 767-200 and -300 series airplanes | Service Bulletin 767-25-0288, Revision 1, dated May 17, 2001; or Service Bulletin 767-25-0288, Revision 2, dated April 25, 2002; or Special Attention Service Bulletin 767-25-0288, Revision 3, dated August 1, 2002. |
| Model | Special attention service bulletin |
|---|---|
| 707-100 long body, -100B long body, -100B short body, -E3F, -300, -300B, and -300C series airplanes | 3499, dated April 27, 2000. |
| 727-100 and -200 series airplanes | 727-25-0295, dated April 27, 2000. |
| 737-200, -200C, -300, -400, and -500 series airplanes | 737-25-1412, dated April 27, 2000. |
| 747-100B, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SR, and 747SP | 747-25-3244, dated April 27, 2000. |
| 757-200 and 757-200PF series airplanes | 757-25-0223, dated April 27, 2000. |
| 767-200 and -300 series airplanes | 767-25-0288, dated April 27, 2000. |
For airplanes identified in paragraph (f) of this AD: As of January 4, 2002, do not attach the shoulder restraint harness of an observer or attendant seat on any airplane to the mounting bracket using a C-clip, unless the requirements of paragraph (f)(2) of this AD are done.
(k) For airplanes identified in paragraph (g) of this AD: As of October 21, 2003, do not attach the shoulder restraint harness of an observer or attendant seat on any airplane to the mounting bracket using a C-clip, unless the requirements of paragraph (g)(2) of this AD are done.
(l) For airplanes identified in paragraph (i) of this AD: As of the effective date of this AD, do not attach the shoulder restraint harness of an observer or attendant seat on any airplane to the mounting bracket using a C-clip, unless the requirements of paragraph (i)(2) of this AD are done.
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.
