# SDR FDEA202108051946

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2021
- Submitted: August 5, 2021
- Operation: Air carrier
- Aircraft: N311FE
- Make and model: Doug MD-10-30F
- Registry model: [Doug MD-10-30F](https://openairdocs.org/model/mcdonnell-douglas-md-10-30f) (OpenAirDocs)
- Aircraft serial: 46871
- Aircraft time: 106,048 hours, 32,047 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Cap
- Part number: AYB70807
- Condition: Corroded
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202108051946

## Discrepancy

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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