XZ179:
• Aircraft prepared for ground runs and flight testing.
• Main Rotor Gearbox flushed and filled.
• Aircraft ground run for leak checking of No.2 ECU Throttle Control Valve and Main Rotor Gearbox sump plug – all satis.
• Aircraft hover tested – functional test of AC system found No.1 AC Control
and Protection Unit to require replacement.
• No.1 Control and Protection unit replaced as required.
• Aircraft ground run and functional test of AC system carried out – found satis.
• Aircraft further hover tested, aircraft taken into circuit of airfield.
• No.2 AC Control and Protection Unit removed and replacement item fitted
(requires wiring up).
• Investigate tail rotor hydraulic cut out system after having been found intermittent.
GEM Engines:
ECU S/N 66456:
• All filter bowls have been drained, inspected and cleaned, satisfied with the condition of these items.
• Internal inspections of the LP compressor, stage 1 rotor and stators, forward surfaces of HP compressor and LP turbine blades have been carried out, all seem to be of a serviceable condition.
• All magnetic plugs have been inspected and found free from contaminants.
• Oil cooler impeller inspected as far as possible and found satis.
• Intrascope port blanks all re-fitted, oil cooler blanks cleaned and refitted.
XZ179:
• Finish fitting of No.2 AC Control and Protection Unit.
• Continue investigation of tail rotor hydraulic cut out system and fault find snag.
• Begin inspection of airframe and systems following first circuits and advanced manoeuvring.
GEM Engines:
• Continue inspection of engines.
twentytwopl 1 February 2022 Uncategorised