TM 10-1670-327-23&P
UNIT AND DIRECT SUPPORT MAINTENANCE
MC-6 PERSONNEL PARACHUTE SYSTEM
NSN 1670-01-527-7537
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INTRODUCTION
INITIAL SETUP:
Tools
Personnel Required
None required
92R (10) Parachute Rigger
Materials/Parts
Equipment Condition
None required
All equipment shall be serviceable and ready for
use.
GENERAL
The following describe PMCS procedures on the unit and direct support levels. The PMCS table has been
provided to ensure the MC-6 is in proper operating condition, and ready for use.
SCOPE
The following work packages (WP 0009 00 through WP 0094 00) contain maintenance procedures that
are the responsibility of the specified technician, as authorized by the Maintenance Allocation Chart
(MAC), and the Source, Maintenance, and Recoverability (SMR) coded items that are identified in the
Repair Parts and Special Tools List (RPSTL).
MAINTENANCE FUNCTIONS/PROCEDURES
Each of the mentioned work packages above identifies a maintenance function specified in the MAC. All
maintenance procedures required to complete a maintenance function are identified under THIS TASK
COVERS: in the order in which the work is most logically accomplished.
PARACHUTE REPACK INTERVAL
The MC-6 will be repacked at a scheduled interval to insure airworthiness. When necessitated by
climate/storage/use condition, the local airdrop equipment maintenance officer may require more frequent
repack intervals. In this regard, a major concern would be rapid fluctuations of temperature (fluctuations
around 32 degrees Fahrenheit) sustained high or low temperature, or high humidity and heavily polluted
atmosphere. The MC-6 main parachute will be repacked at a 120-day interval and the T-11R parachute
will be repacked at a 365-day interval.
DROP TESTING CRITERIA
Drop testing of the MC-6 consist of physically airdropping an item from an aircraft in flight. The drop-test is
used as a means of proving the serviceability of an item or checking parachute rigger proficiency, and will
only be performed under the supervision of qualified parachute rigger personnel who satisfy the
supervisory requirements outlined in AR 750-32. Drop testing will usually be conducted by an activity
responsible for the inspection and maintenance of airdrop equipment, which includes either parachute
packing or airdrop load rigging. The criteria required to accomplish a drop test is as follows:
1. To drop-test a troop-type personnel parachute, a qualified parachute rigger will jump the parachute
and the applicable type parachute will be released under conditions that are consistent with the
requirements for a personnel jump or equipment drop.
2. During the drop-test of any type parachute, the deployment of the parachute will be thoroughly
monitored and observed to detect any indication of malfunction or defect. A subsequent record of the
applicable parachute log record will be entered into the applicable log record using procedures
outlined in WP 0042 00.
3. Any type of airdrop equipment that indicates evidence of malfunction/defect during, or after, a drop-
test will be disposed of as prescribed in WP 0012 00.
0008 00-1
