Aircraft Accident/Incident Report

Karachi Pakistan
Sunday, April 22, 2012 17:35 UTC

NTSB Narrative Summary Released at Completion of Accident

On April 22, 2012, at about 12:35 local time, a Shaheen Boeing 737-400, registration number AP-BJN, operating as flight NL122 from Islamabad (ISB) to Karachi (KHI), Pakistan had the left main landing gear collapse upon landing KHI. It is reported that there is minor damage to the airplane resulting from the collapsed gear. The Pakistan Safety and Investigation Board (SIB) is investigating this event. The NTSB has appointed a U.S. Accredited Representative to assist the investigation under the provisions of ICAO Annex 13 as the State of Manufacture and Design of the airplane. For more information you can contact the Pakistan SIB at: Headquarters Pakistan Civil Aviation Authority, Terminal-1, Jinnah International Airport, Karachi-75200, Tel: (92-21) 99072641, (92-21) 99072642, (92-21) 99072646 & (92-21) 99072738 (0900 - 1700 hrs working days), Fax: (92-21) 99242760 & 99242788 (24 hours) or by email: sib@caapakistan.com.pk.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 4/22/2012
Event Day of the Week Sunday
Time of Event 1735
Event Time Zone Coordinated Universal Time? Same as GMT
Event City Karachi
Event State --
Event Country PAKISTAN
Zipcode of the event site --
Event Date Year 2012
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source --
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions --
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 171
Injury Total Serious --
Injury Total All --
Investigating Agency Foreign
NTSB Docket Number (internal use) --
NTSB Notification Source Boeing
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 15 2013 9:37AM
User who most recently changed record warl
Basic weather conditions --
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number --
NTSB Number DCA12WA161
Missing Aircraft Indicator --
Federal Aviation Reg. Part Non-U.S., Commercial
Type of Flight Plan filed --
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 737
Aircraft Series Identifier 400
Aircraft Serial Number --
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? --
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name --
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country PK
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name --
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City --
Operator State --
Operator Country PK
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event --
Departure Airport Code --
Departure City --
Departure State --
Departure Country --
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 29 2013 9:48AM
User who most recently changed record sedj
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --