Service difficulty report · Start Valve · Doug MD11F

Difficulty date
January 18, 2017
Submitted
January 25, 2017
Operation
Air carrier
Aircraft
N643FE
Make and model
Doug MD11F
Aircraft serial
48486
Aircraft time
61,175 hours, 13,837 cycles
Part
Start Valve
Part number
77553816
Part serial
911149
Condition
Damaged
Location
Nr 2 Engine
Part time
7,593 hours, 3,585 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

START VALVE NR 2 ILLUMINATED DURING FLIGHT. REPLACED THE START CONTROL VALVE AND STARTER PRESSURE SWITCH IAW MM 80-12-03-4-2 AND MM 80-11-01-4-2. FOUND START CONTROL VALVE BUTTERFLY BROKEN. DURINING OPS CHECK OF THE NR 2 ENGINE FOR START CONTROL VALVE AND PRESSURE SWITCH, ENGINE WOULD NOT START. ON FURTHER TROUBLESHOOTING, FOUND MANUAL START VALVE LINKAGE MISALINED 90DEG. CORRECTED IAW MM IAW 80-12-03-4-2. RAN ENGINE IAW JRH. OPS CHECK & LEAK CHECKED GOOD.

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