Page 786 - UK Air Operations Regulations 201121

~ Regulation SPO - ANNEX VIII - Specialised Operations n trik

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Date ........ RA of ···----------·····-- ···········-- Re.sponsible
Existing Further
Phase of Haz Mitigation
Consequence mitigation L s mitigation
operation ref ref
actions required

Note:
Haz ref A unique number for hazards, e.g. for use in a database
Mitigation ref A unique number for the mitigation actions
l; Ukelihood
S: Severity
Template register A - risk register
Operation/ Mitigation
Ref Ref Hazard Ref Consequences L s Monitoring
Procedure actions

Note:
L Uke/ihood
S; Severity
SUBPART C AIRCRAFT PERFORMANCE AND OPERATING LIMITATIONS (SPO.POL)
Reference Description
SPO.POL.100 Operating limitations — all aircraft
(a) During any phase of operation, the loading, the mass and, the centre of gravity (CG)
position of the aircraft shall comply with any limitation specified in the appropriate manual.
(b) Placards, listings, instrument markings, or combinations thereof, containing those
operating limitations prescribed by the AFM for visual presentation, shall be displayed in
the aircraft.
SPO.POL.100 AMC1 Operating Limitations — all aircraft
APPROPRIATE MANUAL
The appropriate manual containing operating limitations may be the AFM or an equivalent document,
or the operations manual, if more restrictive.
SPO.POL.105 Mass and balance
(a) The operator shall ensure that the mass and, the CG of the aircraft have been established
by actual weighing prior to initial entry into service. The accumulated effects of
modifications and repairs on the mass and balance shall be accounted for and properly
documented. Such information shall be made available to the pilot-in-command. The
aircraft shall be reweighed if the effect of modifications on the mass and balance is not
accurately known.
(b) The weighing shall be accomplished by the manufacturer of the aircraft or by an approved
maintenance organisation.
SPO.POL.105 GM1 Mass and balance
GENERAL — OPERATIONS WITH OTHER-THAN COMPLEX MOTOR-POWERED AIRCRAFT
(a) New aircraft that have been weighed at the factory may be placed into operation without
reweighing if the mass records and balance records have been adjusted for alterations or
modifications to the aircraft. Aircraft transferred from one EU operator to another EU
operator do not have to be weighed prior to use by the receiving operator unless the mass
and balance cannot be accurately established by calculation.
(b) The mass and the centre of gravity (CG) position of an aircraft should be revised
whenever the cumulative changes to the dry operating mass exceed ± 0.5 % of the
maximum landing mass or for aeroplanes the cumulative change in CG position exceeds
0.5 % of the mean aerodynamic chord. This may be done by weighing the aircraft or by
calculation. If the AFM requires to record changes to mass and CG position below these
thresholds, or to record changes in any case, and make them known to the pilot-in-
command, mass and CG position should be revised accordingly and made known to the
pilot-in-command.
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