# SDR EISA20000155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2000
- Submitted: October 4, 2000
- Operation: Air carrier
- Aircraft: N316NE
- Make and model: Boeing 727223
- Aircraft serial: 19475
- Aircraft time: 79,619 hours, 55,374 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 10328051
- Part serial: 123264
- Condition: Intermittent
- Location: Aft Fuselage
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EISA20000155

## Discrepancy

PRESSURIZATION UNCONTROLLABLE ABOVE 11,000 FT, AIR TURNBACK TO (IND).  REMOVED AND REPLACED RIGHT OUTFLOW VALVE.  SYSTEM OPS CHECK NORMAL PER M/M 21-31.

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