SDR UIEA2016011100009

Service difficulty report · Densitometer · Boeing 7673S1

Difficulty date: January 9, 2016
Submitted: January 12, 2016
Operation: Air carrier
Aircraft: N640GT
Make and model: Boeing 7673S1
Aircraft serial: 25221
Aircraft time: 79,444 hours, 16,789 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Densitometer
Condition: Contaminated
Location: Fuel System
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

WITH APPROX 63.0 TOTAL BALANCED FUEL, LT FUEL QTY DROPPED TO 28.8 WITH RT AT 31.5 & CONTINUED DECREASING AT EXCEEDED RATE TO 27.5, THEN RAPIDLY RETURNED TO 30.1. BURN CONTINUED NORMAL AFTER. PERFORMED FUEL QTY BITE IAW MM 28-41-00 FAULTED D1. REMOVED LT DENSITOMETER, CLEANED DEBRIS FROM PLUG D1534 IAW WDM 28-41-21. OPERATIONAL CHECKED NORMAL.

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