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of engine no.1
MEL 02-78-
01B-1
Final Report
INTERGOVERNMENTAL AVIATION COMMITTEE
31
deactivated category C
AG205460 07.07.06 07.14.06 Toilet on left
side not working
MEL 02-38-
01B category
С
АТ268458 07.04.06 07.14.06
Failure of
autopilot no. 2
system
MEL 02-22-
02-5B
category С
АG205464 07.07.06 07.14.06
Speaker system
for flight
attendants not
working in seats
1R and 3R
MEL 02-23-
02-9 category
С
Note: The Sibir Minimum Equipment List (MEL) that was in force at the
time of the accident was approved by the Federal Transportation Inspection
Service on June 7, 2006 and was amended by Revision no. 1 on June 20, 2006.
The А-310 airplane was awarded the initial certification of the MAK
Aviaregistr in a three-class configuration and it was deemed compliant with
clause 5.8.5.3 of AAS-3 (Airplane Airworthiness Standards) in terms of the
portable oxygen and protective breathing equipment.
According to drawing no. AI 004-80.1123 of August 6, 1996, airplane FOGYP,
upon delivery to Aeroflot, had 4 smoke hoods for the flight attendants
that were located in the forward and rear sections of the airplane. There was no
smoke control equipment prescribed for the flight attendants in the middle
section of the airplane.
Before Sibir started to operate this airplane, the passenger cabin was
converted from a three-class layout with 185 seats into two classes with 205
seats, and photoluminescent path markings were installed on the floor. The
conversion was carried out by Lufthansa Technik AG (Germany) by order of
Sibir (engineering order no. 142524 of June 16, 2004). Lufthansa Technik AG
received Supplemental Type Certificate (STC) for the two-class layout from
EASA: STC EASA A.S.0025 and STC EASA A.S.0027, which were issued on
the basis of LBA (Germany) certificate no. TA0816 of June 20, 2004. The
photoluminescent system was installed on the basis of STC EASA A.S.0024 and
STC EASA A.S.0027. MAK did not receive a request to obtain the
Supplemental Type Certificate (STC) for the two-class layout.
Note: The airplane was delivered by Airbus to the Sibir airline on June
18, 2004 in a three-class layout. The Certificate of Release to Service was issued
by Lufthansa Technik AG on July 16, 2004 after completing the modifications
mentioned above.
None of the STCs deals with on-board emergency equipment, with the
exception of the installation of additional life jackets on passenger seats and the
Final Report
INTERGOVERNMENTAL AVIATION COMMITTEE
32
alteration of routes for supplying oxygen to passengers. In particular, no
protective breathing equipment was removed or added.
So the F-OGYP airplane had no protective breathing equipment (PBE) for
the flight attendants responsible for the emergency exits in the middle part of the
cabin. Smoke control equipment for flight attendants in the tail section of the
cabin was located on the wall on the side of the passenger cabin. This did not
allow flight attendants to quickly fetch it if the need arose.
Note: Another Sibir airplane (serial number 453, reg. F-OGYQ), which
went through the same cabin modernization, has smoke control equipment on
board for each of the 6 flight attendants.
The availability of this equipment was regulated by clause 5.8.5.3
NLGS-3, by which the А-310 was certified in the USSR. This clause states that
"…Flight attendants to whom the flight manual assigns duties of providing
assistance to passengers when smoke appears in the cabin should be supplied
with additional smoke masks. The device with the smoke mask attached to it
should meet the requirements of 5.8.4.2.4 and should be installed in a place that
is easily accessible by the flight attendants".
According to the information received from EASA the certification basis
for A-310-300 (FAR-25 amendment 1 to 45) and particularly item 25.1439
amendment 38 do not require the installation of smoke protection masks for
each cabin crew member. The smoke protection masks were compliant with
JTSO-C116. This kind of equipment is used only for in-flight firefighting. There
are no procedures or requirements to use it during emergency evacuation. The
corresponding cabin crew training does not exist.
However, clause 1.3.1 of the flight attendant work manual of the ОАО
Sibir Airline stipulates the need for using an anti-smoke hood when
extinguishing a fire or in the event of smoke formation. The emergency schedule
for the 6 crew members assigns duties for each of them during passenger
evacuation.
1.7. Meteorological Information
　
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