# SDR AALA202607132429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2026
- Submitted: July 14, 2026
- Operation: Air carrier
- Aircraft: [N961AN](https://openairdocs.org/aircraft/N961AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30092
- Aircraft time: 70,222 hours, 30,308 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Module
- Part number: C17001DA01
- Condition: Unreliable
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607132429

## Discrepancy

AIRCRAFT WAS GROUNDED: AIRSPEED UNRELIABLE INDICATIONS ON CAPTAINS SIDE.  AIRSPEED INDICATIONS DROPPED TO APPROXIMATELY 190 KNOTS AT FL360 WITH AIRSPEED AURAL INDICATION. RAN CHECKLIST AND INDICATIONS RETURNED TONORMAL, BUT THIS OCCURRED THREE MORE TIMES. ADDITIONALLY, BOTH EEC LIGHTS ILLUMINATED FOR SEVERAL SECONDS IN CONJUNCTION WITH AIRSPEED INDICATIONS, THEN WENT OUT. DECESION MADE TO DIVERT TO MIA, AIRCRAFT LANDED OVERWIGHT WITHOUT INCIDENT. MAINTENANCE REPLACED CAPTAINS PITOT ADM AND TESTED IAW AMM 34-21-04.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.