# SDR TWAA0009704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2000
- Submitted: June 20, 2000
- Operation: Air carrier
- Aircraft: [N9409F](https://openairdocs.org/aircraft/N9409F), 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: 53121
- Aircraft time: 22,081 hours, 11,316 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Damaged
- 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/TWAA0009704

## Discrepancy

DURING CHECK-C MAINT, FOUND MEMBRANE UNDER FLOOR PANEL 3A I/B AFT CORNER HAD DAMAGE.  THE MEMBRANE WAS CORRODED AT STA 200 I/B OF RIGHT FWD SERVICE DOOR.  REPLACED MEMBRANE PER SPM 6-70-01 ITEM 4A-2, AND REF SRM 53-14-1, FIG 11.  TREATED PER SRM 51-10-3 AND SEALED PER SRM 51-20-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.