# SDR AALA202102089010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2021
- Submitted: February 9, 2021
- Operation: Air carrier
- Aircraft: [N824NN](https://openairdocs.org/aircraft/N824NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30916
- Aircraft time: 32,995 hours, 13,417 cycles
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: B-Nut
- Condition: Loose
- Location: Pitot Tube
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202102089010

## Discrepancy

AIRCRAFT WAS GROUNDED: AIRSPEED AND ALTITUDE UNRELIABLE IN FLIGHT, CREW DECLARED EMERGENCY AND ARRIVED AT DESTINATION WITHOUT INCIDENT. TIGHTENED B-NUT ON RH PITOT PROBE IAW AMM 34-11-01, OPS CHECK GOOD.

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