Service difficulty report · Mount · Boeing 7572B7

Difficulty date
November 12, 2009
Submitted
November 12, 2009
Operation
Air carrier
Aircraft
N907FD
Make and model
Boeing 7572B7
Aircraft serial
27198
Aircraft time
52,273 hours, 21,563 cycles
Part
Mount
Part number
311N51203
Condition
Corroded
Location
Nr 1 Pylon
Part time
52,273 hours, 21,563 cycles
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

NR1 ENG PYLON FWD ENG MOUNT PAD CORRODED. REMOVED CORROSION AT NR 1 ENG PYLON FWD LWR WEB (MOUNT) IAW SRM 54-50-01. ORIG MAT THICKNESS AT FWD BLENDOUT AREA .263, AFTER REWORKED .261, AND AT MIDDLE BLENDOUT AREA ORIG MAT THICKNESS .264, AFTER REWORKED .261, AND AT AFT BLEND OUT AREA ORIG MAT .263, AFTER REWORKED .260. FOUND TO BE WITHIN LIMITS ON ALL 3 REWORKED AREAS IAW SRM 54-50-01, FIG 101, DETAIL II. FLAP PEENED REWORKED AREAS IAW SOPM 20-10-03 AND PRIMED IAW SRM 51-20-01. MINOR.

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