SDR UPS96405747

Service difficulty report · Frame · Boeing 747121

Difficulty date: March 7, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N681UP
Make and model: Boeing 747121
Aircraft serial: 19661
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Delaminated
Location: Bs 1008/992
Stage of operation: IN
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHILE IN AMS FOR C-CHECK, MAINTENANCE REPORTED WING-TO-BODY FAIRING SUPPORT STRUCTURE, FOUND FRAME/INTERCOSTAL LOWER CHORD DELAMINATED/CORRODED AT LBL 57, BS 1008, INBOARD, AND BS 992, OUTBOARD. REMOVED DAMAGED SECTION FROM LOWER CHORD AND REPAIRED LOWER IAW SRM 51-40-04.