Exceeding the flight parameters may severely damage
the main rotor assembly of the disabled helicopter,
requiring component replacement. Report the amount
and duration of any flight parameter exceeded to the
unit responsible for the disabled helicopter.
The height above ground level may be difficult to
determine during low-level UMARK operations due to the
length of the sling system. Flight crews should exercise
extreme caution during recovery operations to ensure the
disabled helicopter remains clear of ground obstacles.
4. COMPONENTS REQUIRED
Components of UMARK utilized during the one-hook, long-line recovery are listed in Table 2. Common equipment
used by the ground rigging crew, such as shockproof gloves, goggles, radios, etc., are not included in UMARK.
No additional tools are required for UMARK assembly or rigging of the helicopters.
Table 2. UMARK Components Required
Black/White 30 Ft Heavy Weight Sling
Box Link Assembly
Black/White 30 Ft Heavy Weight Sling with Bridle
Green/White 150 Inches (12.5 Ft) Light Weight Sling
Adjustable Length Tie-Down
Yellow/White 153 Inches (12.75 Ft) Light Weight
Fixed Length Tie-Down (With Snap)
Red/White 208 Inches (17.33 Ft) Light Weight Sling
Fixed Length Tie-Down (Without Snap)
Blue/White 360 Inches (30.0 Ft) Light Weight Sling
Blade Sleeve Assemblies
Black/White 120 Inches (10 Ft) Light Weight Sling
Blade Pole Assembly
OH-58D Sight Wedge Assembly
Cargo Hook Thimble
Sling Link Assembly
5. DISABLED HELICOPTER RIGGING
6. Inspect Disabled Helicopter for Damage
To prevent death or injury to personnel, and/or damage to
the recovery and/or recovered helicopter, discontinue the
disabled recovery procedure if damage is detected and refer
to applicable Work Package of this manual as directed.
a. Check the main rotor assembly, main transmission and transmission mounts, and tail-boom for damage in
accordance with applicable technical manual.
b. If damage is determined, discontinue procedure and perform the following:
(1) For a damaged main rotor, main transmission, and/or transmission mounts perform damaged
recovery procedure outlined in Work Package 0017 00 of this manual.
(2) For a damaged tail-boom perform damaged recovery procedure outlined in Work Package 0018 00
of this manual.
c. If no damage is detected in the preceding step proceed to the next step.