# SDR DALA2026010900211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2026
- Submitted: January 9, 2026
- Operation: Air carrier
- Aircraft: [N821DN](https://openairdocs.org/aircraft/N821DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31932
- Aircraft time: 37,784 hours, 14,726 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Adm
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026010900211

## Discrepancy

ATB- RETURNED MSP DUE TO AIRSPEED DISAGREE. CAPTAIN'S SIDE INACCURATE.   FAULT CODES 31-65050 (ALT DISAGREE), 31-65010 (PITCH DISAGREE) AND 31-65020 (ROLL DISAGREE) RECORDED. CAPTAIN'S PITOT HEAT TESTS GOOD. REPLACED LEFT ADIRU AND CAPTAIN'S SIDE PITOT ADM. PITOT STATIC AND AIRSPEED OPS CHECK GOOD. (LP 7991534)

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