SDR UIEA200700304

Service difficulty report · Trunnion · Boeing 747271C

Difficulty date: July 27, 2007
Submitted: August 24, 2007
Operation: Air carrier
Aircraft: N537MC
Make and model: Boeing 747271C
Aircraft serial: 22403
Aircraft time: 97,429 hours, 19,113 cycles
System (JASC): 5343 · Fuselage, Landing Gear Attach Fittings
Part: Trunnion
Condition: Corroded
Location: Bs 1480
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

LEFT BODY GEAR INBOARD TRUNNION FITTING HAS CORROSION AROUND THE UPPER FACE OF 3 BOLT HOLES (INBOARD FWD, OUTBOARD FWD, AND OUTBOARD AFT). LOCALLY BLENDED OUT ALL PITTING CORROSION AREAS. HFEC AND 10X VISUAL INSPECTION PLUS DYE PENETRANT INSPECTION ACCOMPLISHED. SPOT FACED WASHER BEARING SURFACE AREA. HFEC AND 10X VISUAL INSPECTION OF BOLT HOLES ACCOMPLISHED, FLAP PEENED REWORKED AREA. TREATED AND PRIMED AREA. AREA WITH IN LIMITS PER BOEING MESSAGE NR 1-381511269.