SDR IPXA2026092402007

Service difficulty report · Valve · Airbus A300F4622R

Difficulty date: September 24, 2026
Submitted: September 25, 2026
Operation: Air carrier
Aircraft: N161UP
Make and model: Airbus A300F4622R
Aircraft serial: 0850
Aircraft time: 27,397 hours, 16,461 cycles
System (JASC): 2120 · Air Distribution System
Part: Valve
Part number: EVT3745B
Part serial: 1640000102
Condition: Failed
Location: Zone 200
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

OVERBOARD EXTRACT VALVE CAUSING EXTRACT FAN HIGH SPEED CIRCUIT BREAKER TO POP. REVERSED, REMOVED AND REPLACED EXTRACT FAN (73HR) IAW AMM 21-23-11/401, NO HELP. TROUBLESHOT IAW ASM 21-33-00 SCH 02 FOUND BAD RELAY (68HR), REMOVED AND REPLACED RELAY (68HR) IAW ESPM 20-45-24-01 OPERATIONAL CHECK GOOD, THIS CLEARS DEFERRAL, PLACARD REMOVED

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