Form ASI-PC6 Alignment & Symmetry Inspection
Reissued: 2
Revision: 1
Date: July 2020
Page 1 of 4
MAINTENANCE PROGRAM
PILATUS PORTER PC6
Ref. AMM Pilatus Porter PC6 Chapter 05-57-01
PILATUS PC6 - ALIGNMENT & SYMMETRY INSPECTION SHEET
Aircraft
Registration
:
…………….
Job Number
:
…………….
Aircraft S/N
:
…………….
NO.
DESCRIPTION
TASK NO.
MECH.
ENG. RII
Lateral Leveling Check (Ref. Fig. 1)
1
Position the theodolite in front of the aircraft.
N/A
2
Suspend the tape measure vertically from the left Reference Point RP6.
The 'zero mark on the tape must be at the center of the painted rivet
head.
N/A
3
Adjust the theodolite tripod to allow readings to be taken on the tape.
N/A
4
Level the theodolite:
a) Level the theodolite base, and rotate through 360°, checking every
90° to ensure base is level.
N/A
b) Level theodolite head by turning leveling adjuster to match bubble
halves visible through small leveling eyepiece.
N/A
5
Zoom and focus the theodolite on the tape. Make a note of the reading.
N/A
6
Suspend tape measure from right Reference Point RP6, with zero mark
on tape measure at center of painted rivet head, approximately 1 m of
tape exposed, and scale on tape measure facing theodolite.
N/A
7
Zoom and focus the theodolite on the tape. Make a note of the reading.
N/A
8
Compare readings noted from the right and left reference points.
N/A
9
If the readings are not identical, adjust the main jacks and repeat this
procedure.
N/A
Longitudinal Leveling Check (Ref. Fig. 1)
1
Put the theodolite in position at the side of aircraft.
N/A
2
Suspend the tape measure from RP1a with the zero mark on the tape at
the center of the painted rivet head.
N/A
3
Adjust the height of the theodolite tripod to allow a reading to be taken
on the tape.
N/A
4
Level the theodolite:
(a) Level the theodolite base, and rotate through 360°, checking every
90° to ensure base is level.
N/A
(b) Level theodolite head by turning leveling adjuster to match bubble
halves visible through small leveling eyepiece.
N/A
5
Zoom and focus the theodolite on the tape. Make a note of the reading.
N/A
6
Suspend the tape from RP1b with the zero mark on the tape at the
center of the painted rivet head.
N/A
7
Zoom and focus the theodolite on the tape. Make a note of the reading.
N/A
8
Compare readings noted from the forward and aft reference points.
N/A
9
If the readings are not identical, adjust the tail stand and repeat this
procedure.
N/A
Summary of Contents for PILATUS PORTER PC6
Page 2: ...MAINTENANCE PROGRAM PILATUS PC 6 DOCUMENT NUMBER SAP 27 REISSUE 2 REVISION 1 JULY 2020...
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