# SDR DLL13971342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N786DL
- Make and model: Lkheed 10113851
- Aircraft serial: 193A1123
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Press Relief Vlv
- Part number: 672870107
- Condition: Cracked
- Location: Aft Press Blkhd
- 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/DLL13971342

## Discrepancy

ONE OF THE SIX SPOKES ON THE LT NEGATIVE PRESSURE RELIEF VALVE ON THE AFT PRESSURE BULKHEAD WAS FOUND CRACKED.  THE REPAIR/ MODIFICATION WAS ACCOMPLISHED PER L-1011 S/B 093-53-249, REV 2.

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