A-A-58036
August 10, 1994
COMMERCIAL ITEM DESCRIPTION
STAIRCASE,AIRCRAFT
BOARDING
The General Semites Administration has authorized the use of this commercial item
description as a replacement for Mil-S-26851, type MA-1, for all federal agencies.
1. SCOPE. This commercial item description covers one type of mobile, aircraft boarding staircase,
designated type MA-1. The intended use of this staircase is for loading and unloading passengers onto
and off from various types of military aircrafT in various temperature extremes and conditions.
2. SALIENT CHARACTERISTICS. Failure of the aircraft boarding staircase to meet the following
salient characteristics will require rejection of the offer. The aircraft boarding staircase shall be free
from faulty construction or any defect which affects appearance, serviceability, and durability. The
loaders shall be representative of the quality and workmanship found in aircraft boarding staircases
offered for new commercial sale.
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2.1 Design and construstion:The staircase shall be designed and constructed so that no part
will work loose in service. The staircase shall be constructed of lightweight, high strength-
weight ratio material.
2.2 The staircase shall be adjustable to all heights above ground level
within the range of 85 to 145 inches. The adjustment provision shall be such that the top
platform will mate with aircraft loading doors at any height without forming a height variance
of more than +3/8 inch between the aircraft doorsill and the top platform.
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2.3 Air Transportability: The staircase shall be capable of being transported in a C-141
l
military transport aircraft, The requirements for this are contained in MIL-STD-1791.
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any
data which may improve this document should be addressed to SA-ALC/TILDD with copy
to SA-ALC/LDEE Kelly AFB, TX 78241-7280, by using the Standardization Document
Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.
FSC 1730
AMSC N/A
STATEMENT A. Approved for public release, distribution is unlimited.
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