# SDR AALA202603061844

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2026
- Submitted: March 6, 2026
- Operation: Air carrier
- Aircraft: [N335PH](https://openairdocs.org/aircraft/N335PH), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31265
- Aircraft time: 24,889 hours, 10,931 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: C17001BA01
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- 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/AALA202603061844

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. ACFT AIR INTERRUPTED BACK & LANDED SAFELY AT DEN.    CAPTAIN'S AOA SENSOR FAULTED, R & R LT  AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) &  LEFT HAND STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. REMOVE AND REPLACED FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. REMOVE & REPLACED NUMBER 1 (ADIRU)-AIR DATA INERTIAL REF UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK & TESTS ARE GOOD.

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