Commercial Fixed Wing
Maintenance Airframe; Maintenance Powerplant
Workload; Training / Qualification; Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Procedure; Manuals; Chart Or Publication; Aircraft
I was asked to inspect the right MLG (Main Landing Gear) assembly per job card XXX. On page 2 of the job card is a note that the 'Aircraft Must Be On Jacks'. The right MLG was supported by an axle jack and both wheel and brake assemblies were removed. I was to accomplish Step 3: DETAILED INSPECTION OF MLG; SLIDING TUBE; BRAKE ATTACHMENT FLANGE; UPPER AND LOWER TORQUE LINKS; UPPER AND LOWER TORQUE LINK PINS AND APEX PIN & NUT - EXTERNAL SURFACES; EXCEPT WHERE COVERED BY DRESSINGS AND BUSH FLANGES; and Step 4: DETAILED INSPECTION OF MLG; MAIN FITTING; FWD PINTLE PIN; FWD PINTLE PIN LOCK/ STUB BOLTS; REAR PINTLE PIN & NUT; RETRACTION ACTUATOR ATTACHMENT PINS & UPPER DIAPHRAGM CROSS PIN - EXTERNAL SURFACES; EXCEPT WHERE COVERED BY DRESSINGS & BUSH FLANGES.I read the note on page 2 of the job card; which stated the Aircraft Must Be On Jacks. I began inspecting the MLG but could not access all the points described because the axle jack interfered. I stated in a Work In Progress entry in [software] what items I inspected as well as a Work In Progress that the Aircraft needed to be jacked to complete the job card. The job card was completed without the aircraft being placed on jacks. Steps 5 & 6 of the job card are mechanic steps; however they require measurements to be taken with the weight off the gear. By using an axle jack to support the gear; inaccurate measurements may be obtained; and excessive wear fails to be identified. This job card is normally sequenced in the check to be accomplished after the aircraft is jacked; I noted that it is scheduled on day XX.I would suggest having this job card worked after the aircraft is jacked as the normal workflow shows.
Maintenance Inspector reported an inability to complete a task card because of procedural issues concerning correct jacking of aircraft.