# SDR K11A2026042700379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2026
- Submitted: April 27, 2026
- Operation: Air carrier
- Aircraft: [N730CK](https://openairdocs.org/aircraft/N730CK), registered now
- Make and model: Boeing 737-4C9
- Registry model: [Boeing 737-4C9](https://openairdocs.org/model/boeing-737-4c9) (OpenAirDocs)
- Aircraft serial: 26437
- Aircraft time: 62,614 hours, 33,305 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Indicator
- Part number: 2083111
- Part serial: 1674
- Condition: Failed
- Location: Airspeed
- Stage of operation: CL
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/K11A2026042700379

## Discrepancy

AIRSPEED UNRELIABLE FO SIDE AND STICK SHAKER ACTIVATION AFTER TAKEOFF LP 737-004-1488. REF LP 737-004-1489 REJECTED T/O SPEED 70 KNOTS, AIRSPEED UNRELIABLE ON FO SIDE ON BOTH AIRSPEED AND EFIS.  R&R MACH AIRSPEED INDICATOR IAW AMM 34-12-21, OPS CHECK GOOD NO DEFECTS NOTED. REF LP 737-004-1489 FLUSHED OUT DEBRIS FROM RT UPPER PITOT/STATIC PROBE IAW AMM 34-11-11 F/O’S PITOT & STATIC LEAK TEST PASS IAW AMM 34-11-01, NO DEFECTS OR LEAKS NOTED. PERFORMED HIGH ENERGY STOP CONDITIONAL INSPECTION IAW AMM 05-59-07, NO DEFECTS NOTED.

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