# SDR 96FDEA00863

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N639FE
- Make and model: Boeing 747-2R7F
- Registry model: [Boeing 747-2R7F](https://openairdocs.org/model/boeing-747-2r7f) (OpenAirDocs)
- Aircraft serial: 21650
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Press Deck
- Condition: Corrosion
- Location: Lt Mlg Ww
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96FDEA00863

## Discrepancy

AFTER REMOVAL OF Z-ANGLE BECAUSE OF EXTENSIVE EXFOLIATION CORROSION, ADDITIONAL CORROSION WAS NOTED UNDER Z-ANGLE ON PRESSURE DECK WEB BS 1289 LT WW WITH SEVERAL AREAS.  CORROSION WAS BEYOND ALLOWABLE LIMITS.  FABRICATED DOUBLERS AS PER TRAVELER NR 51627, INSTALLED DOUBLERS IAW EA B53-10-328 AND INSTALLED NEW Z-ANGLE IAW SRM 55-10-01.

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