SDR IPXA2021031066692

Service difficulty report · Cooling Fan · Boeing 7478F

Difficulty date: March 10, 2021
Submitted: March 12, 2021
Operation: Air carrier
Aircraft: N612UP
Make and model: Boeing 7478F
Aircraft serial: 64258
Aircraft time: 10,648 hours, 1,504 cycles
System (JASC): 2121 · Air Distribution Fan
Part: Cooling Fan
Condition: Odor
Location: Cockpit
Stage of operation: CL
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

INSPECTION TYPE:N/ASTATUS MSG EE CLNG SUP FAN FAIL DURING CLIMB. NOTICABLE ELEC BURNING ODOR NOTICED IN COCKPITMSG E/E COOLING SUPPLY FAN FAIL OF CMC NOTED. ODOR CONFIRMED FROM MEC COMPARTMENT. FOUND C/C C03145 EQUIP COOLING SUPPLY FAN PWR POP OUT. OBSERVED STRANGE NOISE OF E/E COOLING SUPPLY FAN. ABNORMAL FUNCTION. E/E COOLING SUPPLY FAN REPLACED IAW AMM 21-58-01 P401 REV 34A.01. EQUIPMENT COOLING CMC GROUN

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