# SDR DLL10990550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N720DA
- Make and model: Lkheed 10113851
- Aircraft serial: 193C1136
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: R1 Doorway
- 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/DLL10990550

## Discrepancy

THE UPPER AFT CORNER OF THE R1 DOOR CUTOUT WAS FOUND WITH A TYPICAL CRACK IN THE SKIN ASSY AND TRIPLER.  THE AREA WAS X-RAYED TO DETERMINE THE EXACT END OF THE CRACK AND REPAIRED PER L1011 SRM 53-31-00, FIG 836.  THE REPAIR WAS DOCUMENTED PER ER/A 366927-14.

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