Service difficulty report · Floorbeam · Boeing 75723A

Difficulty date
September 8, 2010
Submitted
September 9, 2010
Operation
Air carrier
Aircraft
N993FD
Make and model
Boeing 75723A
Aircraft serial
24965
Aircraft time
54,902 hours, 18,656 cycles
Engine
Pwa PW2037
Part
Floorbeam
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
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

MAIN DECK FLOORBEAM UPPER TEE CORRODED FROM BL 0 TO LBL 24.5 STA 345. REMOVED CORROSION IAW SRM 51-10-02. CHECKED LIMITS ORIGINAL THICKNESS .125" AFTER REMOVED .106" FOUND OUT OF LIMITS IAW 53-00-51, FIG 101, DET III REMOVED FLOORBEAM AT STA 345 BET, LBL 70 RBL 70 AND ASSY PARTS FOR ACCESS IAW SRM 51-40-02 RECEIVED NEW FLOORBEAM PN BAC 1518-338, BATCH 1898860, TRIMED BOTH END PICKED UP EXISTING FASTENER HOLES IAW DWG 141N5111 AND SRM 53-10-51 PAG 4 FIG 1. INSTALLED NEW FLOORBEAMAND ASSY PARTS IAW SRM 51-40-02 AND DWG 141N5111. MAJOR REPAIR

More about the Boeing 757-23A