SDR AMTA200700290

Service difficulty report · Sensor · Boeing 75723N

Difficulty date: June 14, 2007
Submitted: June 29, 2007
Operation: Air carrier
Aircraft: N514AT
Make and model: Boeing 75723N
Aircraft serial: 27971
Engine: Rroyce RB211535E4
System (JASC): 2150 · Cabin Cooling System
Part: Sensor
Part number: 6259283
Part serial: 10980298
Condition: Failed
Location: Rt A/C Pack
Stage of operation: CR
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

EICAS MSGS RT PACK OFF & PACK TEMP DISPLAYED RT INOP & PACK OFF LGTS ILLUM, LIGHTS EXTINGUISHED WHEN PACK RESET SWITCH IN STANDBY, OPERATION NORMAL IN STANDBY. OCCURED AT FL 350 MACH .79. PERFORMED PACK TEMP CONTROLLER BITE PROC, IAW FIM 21-51-00, FIG 104, FOUND COMPRESSOR SENSOR FAULT, REMOVED AND REPLACED RT PACK COMPRESSOR SENSOR IAW 21-51-06-4, OPS CHECKS NORMAL. (K)

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