SDR UIEA2011080100434

Service difficulty report · Pressure Panel · Boeing 7472D7B

Difficulty date: August 1, 2011
Submitted: August 10, 2011
Operation: Air carrier
Aircraft: N524MC
Make and model: Boeing 7472D7B
Aircraft serial: 21784
Aircraft time: 105,635 hours, 21,872 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Pressure Panel
Condition: Cracked
Location: Bs 1241
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

DURING C4/A6 CHECK, REVEALED CRACKS ON BOTH BS1240 PRESSURE DECK CLOSEOUT PANELS AS SHOWN IN FIG 1:- RT SIDE (RBL 75.92 TO 98.58): CRACK WAS REPORTED AT 0.5" LONG, ALL DATA WAS RECORDED IN RAM 25 - NRC 512309. REPAIRED BOTH PANELS USING SB 747-53-2329R2, FIG 6.

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