SDR 2002F01109

Service difficulty report · B-Nut · Boeing 727224

Difficulty date: January 30, 2002
Submitted: December 17, 2002
Operation: Air carrier
Aircraft: N296CS
Make and model: Boeing 727224
System (JASC): 2920 · Hydraulic System, Auxiliary
Part: B-Nut
Condition: Loose
Location: Hyd System
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: O

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

What was found

DURING FLIGHT BOTH SYSTEM 'B' PUMPS LOW PRESSURE LIGHTS ILLUMINATE. NO PRESSURE AT ALL ON 'B' SYSTEM, ZERO PRESSURE ON THE SYSTEM. FOUND 'B' NUT OF HYDRAULIC PRESSURE LINE 'B' PUMP NR 2 SYSTEM LOOSE TIGHTENED B-NUT AND SERVICE IAW MM 12-12-0. OPS CHECK ALL FLIGHT CONTROL NORMAL. NO LEAKS FOUND IAW MM 27-00 AND MM 29-12-0. (M)

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