SDR AALA201810097003

Service difficulty report · Pump · Doug DC982

Difficulty date: October 7, 2018
Submitted: October 9, 2018
Operation: Air carrier
Aircraft: N501AA
Make and model: Doug DC982
Aircraft serial: 49738
Aircraft time: 80,771 hours, 43,254 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 3029981001
Condition: Failed
Location: Hyd System
Stage of operation: CR
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

LEFT HYDRAULIC PRESSURE WAS LOW, LIGHT ILLUMINATED IN FLIGHT. HYDRAULIC SYSTEM FAILED INDICATION, EMERGENCY DECLARED AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE PUMP IAW AMM 29-10-05 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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