SDR VGQY2010080200045

Service difficulty report · Mount · Boeing 7472L5B

Difficulty date: August 2, 2010
Submitted: August 3, 2010
Operation: Air carrier
Aircraft: N815SA
Make and model: Boeing 7472L5B
Aircraft serial: 22107
Aircraft time: 96,368 hours, 19,493 cycles
System (JASC): 7120 · Engine Mount Section
Part: Mount
Part number: 65B943491
Condition: Corroded
Location: Nr 1 Engine
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

CORROSION ON NR 1 ENGINE AFT UPPER MOUNT MATING SURFACE AREA FOUND OUT OF LIMITS PER OHM 71-20-02. ORIGINAL THICKNESS: 0.500 INCH, MATERIAL REMAINING: 0.470 INCH. COMPLIED WITH ENGINEERING NOTE, EN 1165-10, NR 1 PYLON AFT ENGINE MOUNT FITTING 65B94349-2 EXCEED OHM 71-20-02 REPAIR LIMITS.

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