Service difficulty report · Control Unit · Boeing 727200

Difficulty date
June 28, 2003
Submitted
June 30, 2003
Operation
Air carrier
Aircraft
N481FE
Make and model
Boeing 727200
Aircraft serial
21463
Aircraft time
39,700 hours, 25,105 cycles
Part
Control Unit
Part number
65249201
Part serial
68
Condition
Faulty
Location
E/E Bay
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
H

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

What was found

REPEAT WRITEUP. ENG NR 1 STRUT OVERHEAT LIGHT ILLUMINATED ON CLIMBOUT. COMPLIED WITH RED TABS AND LIGHT EXTINGUISHED WHEN NR 1 BLEED AIR SWITCH CLOSED AND LEFT, PACK TURNED OFF. REMAINED OFF FOR REST OF FLIGHT. INSPECTED NR 1 STRUT OVHT. DETECTOR SENSOR CONNECTORS NO DAMAGE NOTED, CLEANED CONNECTOR ENDS WITH CONTACT CLEANER. AFTER READING WIRING DIAGRHAM ENCH ENG. STRUT HAS A SEPARATE CONTROL UNIT INSIDE THE FIRE AND OVHT.DET. MODULE REMOVED AND REPLACED THE FIRE AND OVHT. DET. MODULE UNIT IAW MM 26-14-000-0 SYS OPS CK GOOD IAW MM 26-14-00-5.

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