SDR UPS97424785

Service difficulty report · Doubler · Boeing 747SR46

Difficulty date: October 26, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N680UP
Make and model: Boeing 747SR46
Aircraft serial: 20923
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Doubler
Condition: Cracked
Location: Rt Outflow Valve
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

INSPECTION TYPE-N/A, RT OUT FLOW VALVE, LOWER FWD, CORNER TANG OF INTERNAL DOUBLER HAS 2 EA SUSPECTED CRACKS. NDT REQ, FOUND 4 EA FASTENER HOLE CRACKED. USING NDT M-20 (M) REF LOGBOOK PAGE 000230 ITEM 1, INST REPAIR AS PER EO 747-5310-9815-B.

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