SDR AALA20181127004

Service difficulty report · Pump · Doug MD83

Difficulty date: November 26, 2018
Submitted: November 28, 2018
Operation: Air carrier
Aircraft: N969TW
Make and model: Doug MD83
Aircraft serial: 53619
Aircraft time: 51,974 hours, 26,111 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 3033
Part serial: 476306
Condition: Failed
Location: Hydraulic Sys
Stage of operation: CL
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

RIGHT ENGINE HYDRAULIC PRESSURE WENT TO 0 WHEN PUMP WAS SWITCHED TO LOW. PRESSURE SHOWED 3000 WITH SWITCH ON HIGH. AN EMERGENCY WAS DECLARED, AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE RIGHT ENGINE HYDRAULIC PUMP IAW AMM 29-10-05, AND PERFORMED A SATISFACTORY OPERATIONAL CHECK.

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