60-16-02: Fuel Dump Chutes

60-16-02\tBOEING: Amdt. 184 Part 507 Federal Register August 2, 1960. Applies to the Following 707-100, -200, -300 Aircraft Only: Serial Numbers 17586 Through 17605, 17609 Through 17616, 17623 Through 17625, 17628 Through 17652, 17658 Through 17680, 17692 Through 17702, 17925 Through 17927. \n\tCompliance required by December 31, 1960. \n\tWhen the fuel dump chutes are in the stowed position, the dump chute roller may not be fully engaged and the dump chute not locked in position. This has resulted in thirteen incidents of the fuel dump chutes inadvertently extending in flight. In five cases all or part of the chute and/or door was lost. In eight cases some damage was done to the chute and/or door. In order to eliminate this problem a new uplatch assembly has been designed which incorporates a position lock for the dump chute roller and a mechanism to indicate the position of the latch when the dump chute is stored. As a result of the above, the following modifications shall be accomplished as indicated: \n\t(a)\tRemove the fuel dump chute uplatch assembly and rework or install new uplatch assemblies in accordance with Boeing Service Bulletin Nos. 689 (R-3), 895 and 895A. \n\t(b)\tAfter completion of item (a) conduct the pressure check-out procedure as outlined in item (a1) of Boeing Service Bulletin No. 689 (R-3). This pressure check procedure must be conducted each time the fuel dump chute is removed and reinstalled. \n\t(c)\tA placard must be added on the exterior side of the dump chute closure panel adjacent to the indicator hole. For nomenclature and method of fabricating this placard follow procedure outlined in item (am) of Boeing Service Bulletin No. 689 (R-3). \n\t(d)\tPerform functional test as outlined in Boeing Service Bulletin Nos. 689 (R-3), 895 and 895A.