Service difficulty report · Relay · Boeing 737924ER

Difficulty date
September 25, 2026
Submitted
September 30, 2026
Operation
Air carrier
Aircraft
N69810
Make and model
Boeing 737924ER
Aircraft serial
42744
Aircraft time
39,723 hours, 14,708 cycles
Engine
Cfmint CFM567B27
Part
Relay
Condition
Faulted
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

SPEED BRAKE DID NOT ARM, LIGHT ON . WHEN TOGA POWER WAS SELECTED FOR TAKEOFF. EXTINGUISHED WITH THRUST IDLE. LIGHT ALSO CAME ON WITH FLAP RETRACTION.AUTO THROTTLE TEST AND SPOILER OPS. TEST PASSED. NO FAULTS SHOWING ON AUTOSPEEDBRAKE CONTROLLER. ACCOMPLISHED HIGH ENERGY STOP INSPECTION. NO DAMAGE NOTED. IAW AMM 05-51-07-210-80145. TROUBLESHOT PER FIM 27-62 TASK 802. PERFORMED TEST OF SMYD 1 & 2, FOUND HISTORY OF AUTOSTOW FAULT 27-62002 ON SMYD 2 BUT NO ACTIVE FAULTS. AUTOSTOW TESTS PASSED. PERFORMED TEST OF AUTO SPEEC BRAKE SYS IAW FIM 27-62, TASK 802. TEST FAILED, SPEED BRAKE DO NOT ARM, LIGHT ILLUMINATES. TROUBLESHOT UP TO STEP F 3 OF THE FIM. RELAYS R588 & R969 CHKD OK. PERFORMED TEST OF AACU. TEST OK. PULLED AND COLLARD SPEED BRAKES MANUALLY ACTUATE NORMAL PERFORMED ENGINE THROTTLE SWITCH FUNCTIONAL TEST SYSTEM TEST PASSED. PERFORMED SPEEDBRAKE AUTOSTOW ACTUATOR AUTOMATIC GROUND TEST TEST PASSED. PERFORMED STEPS IAW FIM 27-62 TASK 802 REF TASK 27-62-33-820-801 REF TASK 27-62-00-720.