SDR DALA2026091705195

Service difficulty report · Adiru · Boeing 7379GPER

Difficulty date: September 17, 2026
Submitted: September 18, 2026
Operation: Air carrier
Aircraft: N955DZ
Make and model: Boeing 7379GPER
Aircraft serial: 38743
Aircraft time: 30,463 hours, 17,477 cycles
System (JASC): 3414 · Airspeed/Mach Indicator
Part: Adiru
Condition: Faulted
Stage of operation: TO
How discovered: O
Nature of condition: N
Precautionary procedure: C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ATO- APPROX 100KTS DUE TO AIRSPEED DISAGREE. REPLACED LEFT ADIRU PER AMM 32-21AND PITOT PROBE TUBE PER B737-34-11. PERFORMED HIGH LEVEL PUMP UP, NO FAULTS PRESENT. CYCLED EEC SWITCHES BACK TO NORMAL PER B737 SDS 73-21-00 EEC'S GO TO ALT WHEN AIRSPEEDS DISAGREE, NO FURTHER FAULTS. (LP 9506432 - AIRCRAFT WAS GROUNDED)

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