Service difficulty report · Indication Sys · Boeing 737924ER

Difficulty date
September 21, 2024
Submitted
September 24, 2024
Operation
Air carrier
Aircraft
N68817
Make and model
Boeing 737924ER
Aircraft serial
42747FAL
Aircraft time
33,625 hours, 12,149 cycles
Part
Indication Sys
Condition
False Indication
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

HYD A QTY FELL TO 78 AT CRUISE AND CONTINUED TO DROP TO 72 PERFORED EXTENSIVE WALKAROUND AND WHEEL WELL GVI NO VISIBLE SIGNS OF LEAK CHECK RESERVIOR A QTY FOR COMDITIONS NO SIGNS OF LEAK QTY MATCHES FLIGHT DECK.PERFORMED FIM 31-62 TASK 801 TO ITS COMPLITIONS NO FAULTS FOUND EXERCICE ALL FLIGHT CONTROLS NO ISSUES NOTED NO FLUID LOSEE QTY BACK TO NORMA.SUSPECT INTERMITENT INDICATION FALSE READINGS. REQUESTING MEL APROVAL 2911A. TOMC APPROVED MEL 2911A A SYSTEM HYD QUANTITY INDICATION INOP MEL 2911A APPLIED.C/W MM PROCESURES. PARTS ADDED. CHRONIC FAULT: REF. AMM TASK 29-00-00-790-801-C4 COMPLY WITH HYD RAULIC SYSTEM LEAK CHECK(AIRCRAFT EXTERNAL) AS PRECAUTIONARY. ADD EMP:U260391 NOTE FAULTS. VERIFIED "A" SYSTEM HYDRAULICS ARE AT FULL QTY BEFORE FLIGHT. NO LEAKS NOTED