Service difficulty report · Beam · Boeing 7272Q9

Difficulty date
June 14, 2007
Submitted
June 18, 2007
Operation
Air carrier
Aircraft
N740DH
Make and model
Boeing 7272Q9
Aircraft serial
21930
Aircraft time
47,830 hours, 38,338 cycles
Part
Beam
Part number
651986219
Condition
Corroded
Location
Bs 294-350
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

NOSE SECTION AT WALKWAY BEAM LT MID CHORD SHOWS CORROSION SPOTS BS 294 ALL WAY BACK TO BS 350. REMOVED WALKWAY WEB I/B SIDE LT TRUNNION FITTING, FWD AND AFT TRUNNION STIFFENERS TO GAIN ACCESS IAW B727 SRM 51-30-2. REMOVED CORROSION AT LEFT MID CHORD IAW B727 SRM 51-10-6, ORIGINAL MAT. IS .180" IAW B727 SRM 53-10-2 FIG 1, MATERIAL LOSS IS FOUND TO BE OUT OF LIMITS IAW B727 SRM 53-10-1 FIG 1. REMOVED LEFT MID CHORD FITTING IAW B727 SRM 51-30-2, LOCATED AND DRILLED NEW CHORD FITTING P/N 65-19862-19 NSN IAW B727 SRM 51-30-5. INSTALLED NEW LT MID CHORD IAW B727 SRM 51-30-2. REINSTALLED LEFT TRUNNION FITTING, FORWARD AND AFT TRUNNION STIFFENERS AND WALKWAY WEB I/B SIDE IAW B727 SRM 51-30-2.

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