Service difficulty report · Cap · Doug MD1030F

Difficulty date
August 5, 2021
Submitted
August 5, 2021
Operation
Air carrier
Aircraft
N311FE
Make and model
Doug MD1030F
Aircraft serial
46871
Aircraft time
106,048 hours, 32,047 cycles
Part
Cap
Part number
AYB70807
Condition
Corroded
Location
Zone 100
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

LOWER BLADDER CELL AFT BULKHEAD LOWER CAP CUTOUT AREA FOUND CORROSION AT STATION 1368.650 X=-4.95 TO X=-13.95. LOWER BLADDER CELL AFT BULKHEAD LOWER CAP CUTOUT AREA CORROSION REMOVED AS PER SRM 51-21-01 VOLUME 2 AND FOUND EXCEED LIMIT AS PER SRM 53-00-01 FIGURE 1B VOLUME 1 AT STATION 1368.650 BETWEEN X=-4.95 TO X=-13.95. REPAIR CARRIED OUT AS PER E.A : # 8-5310-T0362946 PART 1, TITLE: FUSELAGE - MAINFRAME - EXFOLIATION CORROSION FOUND ON THE AFT PRESSURE BULKHEAD LOWER CAP P/N: AYB7080-7 HORIZONTAL FLANGE UPPER SURFACE AT STA 1368.650. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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