Date & Time: Jun 10, 2013 at 0954 LT
Type of aircraft:
Xian MA60
Operator:
Registration:
PK-MZO
Survivors:
Yes
Schedule:
Bajawa - Kupang
MSN:
06-08
YOM:
2007
Flight number:
MNA6517
Country:
Indonesia
Region:
Asia
Crew on board:
4
Crew fatalities:
0
Pax on board:
46
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
0
Captain / Total flying hours:
12530
Captain / Total hours on type:
2050
Copilot / Total flying hours:
311
Copilot / Total hours on type:
141
Aircraft flight hours:
4486
Aircraft flight cycles:
4133
Circumstances:
On 10 June 2013, a Xi ‘An MA60 aircraft registered PK-MZO was being operated by PT. Merpati Nusantara Airlines on a scheduled passenger flight as MZ 6517. The aircraft departed from Bajawa Airport (WATB) Nusa Tenggara Timur, at 0102 UTC1 to El Tari (WATT) Kupang2, Nusa Tenggara Timur. On board this aircraft were 2 pilots, 2 flight attendants with 46 passengers consisted of 45 adults and 1 infant. The flight was the second sectors for the aircraft and the crew on that day. The first flight was from Kupang to Bajawa Airport. During the flight the Second in Command (SIC) acted as the Pilot Flying (PF) and the Pilot in Command (PIC) as the Pilot Monitoring (PM). The flight from the departure until commencing for approach was un-eventful. At 0122 UTC, the pilot made first communication with El Tari Control Tower controller (El Tari Tower) and reported their position was on radial 298° 110 Nm from KPG VOR3 and maintaining 11,500 ft. The pilot received information that the runway in use was 07 and the weather information (wind 110° 11 knots, visibility 10 km, weather NIL, cloud few 2,000 ft, temperature 30° C, dew point 22° C, QNH 1010 mbs and QFE 998 mbs). At 0133 UTC, the aircraft was on radial 297° 68 Nm from KPG VOR and the pilot ready to descend and approved by El Tari Tower to descend to 5,000 ft. At 0138 UTC, the pilot reported the aircraft was passing 10,500 ft and stated that the flight was on Visual Meteorological Condition (VMC). At 0150 UTC, the aircraft position was on left base runway 07 at 5 Nm from KPG VOR. The El Tari Tower had visual contact with the aircraft and issued a landing clearance with additional information that the wind condition was 120° 14 knots, QNH 1010 mbs. At 0151 UTC, the pilot reported that their position was on final and the El Tari Tower re-issued the landing clearance. At 0154 UTC, the aircraft touched down at about 58 meters and halted on the runway at about 261 meters from the beginning of runway 07. The vertical deceleration recorded on Flight Data Recorder (FDR) was 5.99 G and followed by - 2.78 G.
Probable cause:
Based on factual information collected until the time of issuing the preliminary report, the National Transportation Safety Committee found initial findings as follows:
a. The aircraft was airworthy prior to departure and there was no any aircraft systems problem reported.
b. All crew has valid licenses and medical certificates.
c. The Second in Command (SIC) acted as Pilot Flying (PF).
d. The flight recorders data were recovered and contained information of the flight.
e. The aircraft departed within the weight and balance operating limit.
f. The company approach check list contained item of “PL LOCK……..OPEN” which was not stated in the Flight Crew Operation Manual (FCOM) issued by the aircraft manufacturer. The power lever lock was found open.
g. The approach was not on approach profile as published for runway 07.
h. The FDR recorded that the left power lever was in the range of BETA MODE at approximately 112 ft and continued until touchdown.
i. The aircraft touched down at 58m and halted at 261 meters from the beginning runway 07.
j. The FDR recorded a vertical deceleration at impact was 5.99 G and followed by - 2.78 G.
1. The longitudinal deceleration after impact was calculated approximately 0.7 G.