SDR DXTA2024052311844

Service difficulty report · Shutoff Valve · Emb EMB505

Difficulty date: May 22, 2024
Submitted: May 23, 2024
Operation: Air carrier
Aircraft: N393QS
Make and model: Emb EMB505
Aircraft serial: 50500356
Aircraft time: 6,542 hours, 5,146 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Shutoff Valve
Part number: UNKNOWN
Condition: Faulted
Location: Ecs
Stage of operation: DE
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

RECEIVED ECS VALVE FAIL MESSAGES, FOLLOWED THE QRC, AND DURING DESCENT RECEIVED CAB ALTITUDE HI MESSAGE, WHICH RESULTED IN 1 SET OF PAX MASKS DROPPING IN THE CABIN. REMOVED FAULTY RH FCSOV, P/N 1300250-11, S/N 1643, INSTALLED MODIFIED RH FCSOV, P/N 1300250-11, S/N 796,

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