# SDR ABXA20250419082

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2025
- Submitted: April 21, 2025
- Operation: Air carrier
- Aircraft: [N1489A](https://openairdocs.org/aircraft/N1489A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27206
- Aircraft time: 117,280 hours, 24,580 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Indicator
- Condition: Unreliable
- Location: Airspeed
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20250419082

## Discrepancy

DURING CLIMB, AIRSPEED UNRELIABLE / STUCK AT 270 KTS INDICATION OF OVERSPEED WITH FLAPS & GEAR UP AT 270 KTS. EMERGENCY DECLARED, AIR TURN BACK. (ATB) . MAINTENANCE T/S - ALT VMO SWITCH SELECTED IAW CDL 32-12-1.  AIRSPEED TAPE WILL SHOW 270 KTS.  PERFORMED LANDING GEAR OPERATION ABOVE DESIGN SPEED CONDITIONAL INSPECTION IAW B767 AMM 05-51-07.  NO DEFECTS NOTED. A/C REMAINS NO ETOPS.  A/C RETURNED TO SERVICE.

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