SDR CALA2025062706011

Service difficulty report · Director · Boeing 737924ER

Difficulty date: June 25, 2025
Submitted: June 27, 2025
Operation: Air carrier
Aircraft: N27477
Make and model: Boeing 737924ER
Aircraft serial: 31647
Aircraft time: 37,078 hours, 13,477 cycles
System (JASC): 3410 · Flight Environment Data
Part: Director
Part number: C16221KA02
Part serial: C1622101084
Condition: Faulted
Location: Flight Deck
Part time: 44,344 hours, 15,553 cycles
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

STBY ATTITUDE INDIC OSCILLATING BETWEEN 10 DEGREES AND 30 DEGREE NOSE UP AND30 DEGREES REMOVED ISFD UNIT REFMM 34-24-02 FOR IDENTIFICATION,PULLED 3 TOTAL CBS 2 ON P6-3 AND 1 ON ISFD BATTERY IN E & E COMPARTMENT PER MM 34-24-02 REPLACED ISFD AMM 34-24-02, ALL FLAG OUT OF VIEW, FUNCTIONAL TEST OK, OPS CHECK GOOD, NO FURTHER DEFECT NOTED.