Service difficulty report · Transducer · Boeing 737824

Difficulty date
August 26, 2025
Submitted
August 27, 2025
Operation
Air carrier
Aircraft
N87512
Make and model
Boeing 737824
Aircraft serial
33458
Aircraft time
55,608 hours, 20,100 cycles
Engine
Cfmint CFM567B20
Engine time
15,002 hours, 5,890 cycles
Part
Transducer
Part number
ADP78015106
Part serial
12913
Condition
Faulted
Location
Zone 400
Part time
38,752 hours, 14,066 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ELECTRONIC ENGINE CONTROL (EEC) RECENT FAULTS BITE TEST {B737-73-3-0068} - FOUND LONG TIME MAINTENANCE MESSAGE 78-11491 THE RT REVERSER SLEEVE IS OUT OF RANGE ON ENGINE NR 1, MX WORKED EEC FAULT ON L/P 5753712 IN WHICH FAULT WAS 78-31491 DUAL CHANNEL FAULT FOR THE LEFT ENG RT SLEEVE LVDT. THE R/R OF THE LVDT SHOULD OF BEEN A GOOD FIX. IF NO FAULTS PLEASE CLOSE THIS L/P PERFORMED BITE TEST.