# SDR AALA20151021012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2015
- Submitted: October 23, 2015
- Operation: Air carrier
- Aircraft: [N962TW](https://openairdocs.org/aircraft/N962TW), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53612
- Aircraft time: 46,107 hours, 22,383 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Doubler
- Part number: 599360215
- Condition: Corroded
- Location: Fuselage
- 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/AALA20151021012

## Discrepancy

DURING MX, EXTENSIVE CORROSION WAS FOUND COMMON TO THE INTERNAL DOUBLER AT THE AFT LAVATORY SERVICE PAN.  CORROSION WAS REMOVED IAW SRM & AREA BEYOND ALLOWABLE LIMITS WERE CUT OUT.  A TITANIUM REPAIR DOUBLER WAS INSTALLED TO RESTORE STRUCTURAL STRENGTH IAW EA 255445.

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