Service difficulty report · Valve · Boeing 74747UF

Difficulty date
January 15, 2022
Submitted
January 18, 2022
Operation
Air carrier
Aircraft
N418MC
Make and model
Boeing 74747UF
Aircraft serial
32840
Part
Valve
Part number
80217012
Part serial
930529
Condition
Malfunctioned
Stage of operation
TO
How discovered
O
Nature of condition
B, J
Precautionary procedure
C

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

What was found

ON TAKEOFF ROLL AT APPROXIMATELY 80 KNOTS BLEED 1 EICAS MESSAGE APPEARED AND A PRONOUNCED ACRID SMELL INFILTRATED THE FLIGHT DECK.(<P ><SPAN>PERFORMED TAKE OFF POWER RUNS PER AMM 71-00-00. NO DISCREPANCIES FOUND. SEE LOG PAGE ITEMS M5 AND M6 FOR CONDITIONAL INSPECTIONS FUMES IN THE COCKPIT AND HIGH ENERGY STOP. ITEM M3- REMOVED AND REPLACED HP VALVE IAW AMM 36-11-05 PERFORMED OPS CHECK OF HP VALVE PER AMM 36-11-05 AND AMM 71-00-00 CHECKS OK. ITEM M5- PERFORMED HIGH ENERGY STOP INSPECTION PER AMM 05-51-10. CHECKS NORMAL. ITEM M6- PERFORMED CONDITIONAL INSPECTION PER FIM TASK 21-00 AND TASK 810, CHECKS NORMAL PER AMM 05-51-56</SPAN></P> / <P> </P>)

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