51-5BBA-1, Mk 7 Mod 2, and 51-5BCA-1, Mk 7
Mod 3 Aircraft Recovery Equipment Technical
SAFETY IN MAINTENANCE
Any engine not operable or shutdown because
of malfunction, breakdown, needed adjustment, or
repair should have the deck pendant removed and
all operating pressures relieved. Leaks indicate
poor fittings or bad packing and result in pressure
losses and probable malfunction. Every leak must
be immediately investigated to determine the cause
and the corrective action to be taken. Cleanliness
concerning debris, waste wiping materials, and tools
must be very strictly adhered to, particularly where
involvement with operable parts may occur. A
jammed up engine as a result of carelessness with
work materials could result in injury and/or loss of
life. Lubrication tables for all equipment must be
strictly adhered to.
Venting the various lines to
remove entrapped air, foam, or waste fluids is a
preoperational and operational requirement. Safe
operations depend upon strict adherence to these
and all other pertinent safety instructions.
Molten Metal and Heating Methods
A detailed description of heating and using
molten metal for pouring sockets is contained
earlier in this chapter. Particular attention should
be given to the warning notes and instructions
regarding personnel safety. All personnel involved
in terminal pouring operations or in any operations
where molten metals are involved should wear
goggles, gloves, aprons, and such other protective
clothing as is necessary. Ample ventilation must be
provided against fumes given off by molten metals.
Cables, Pendants, and Taut Lines
In running pendants, cables, or taut lines,
personnel should be familiar with procedures so that
equipment is placed without kinking, twisting, or
unnatural positioning. Improper handling of cables
will cause strand breakage and subsequent
weakening and failure. Whenever deck tractors are
used for pulling out pendants, all personnel must be
on guard for cable lash.
Personnel at deckedge stations or on deck duty
must be alert during landing operations to stay clear
of any aircraft and particularly those making
offcenter or excessive-speed landings. Either type
can lead to pendant failures, unequal stanchion
loadings in the event of barricade landings, and the
possibility that such aircraft will go over the deck
The following safety checklist should be posted
at applicable locations:
Replace broken, worn, or kinked deck
pendants and barricade deck cables as soon as
Inspect deck pendants after each group of
landings and after each excessive-load landing, such
as extreme offcenter landings or extreme runout to
Lubricate deck pendants and barricade
cables properly and frequently.
Replace broken wire supports.
Raise the barricade webbing to the proper
Replace loose or damaged cable fittings and
Do not allow terminal jamming of deck
Remove debris and dirt from all areas.
Remove the deck pendants from engines
that are inactive.
Keep stanchion area clear of personnel
when raising and lowering cables and webbing
Do not reuse the barricade webbing system
after an arrestment.
Hookrunners should approach all arrested
aircraft from the front to avoid jet blast and possible
broken cable backlash.