# SDR TWAA9910911

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N979Z](https://openairdocs.org/aircraft/N979Z), registered now
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47343
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 99115056
- Condition: Cracked
- Location: Bs 83.5
- 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/TWAA9910911

## Discrepancy

DURING OP 16 MAINT CHECK, FOUND CRACK IN RADIUS OF FRAME 9911505-6 APPROXIMATELY .75 INCH IN LENGTH, FWD OF RT CENTER WINDSHIELD POST, STA 83.5 AT X=-10.  REPAIRED FRAME PER SRM 53-05, FIG 34.

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