San Antonio International Airport
Aircraft Accident/Incident Report

San Antonio, Texas 78216
Monday, April 7, 1997 13:08 CDT

NTSB Narrative Summary Released at Completion of Accident

During the final approach for the runway, the right main landing gear did not extend. The pilot initiated a go-around and performed the emergency procedure for gear extension; however, the right main gear still did not extend. During the subsequent emergency landing roll, the left main gear and the nose gear collapsed and the airplane departed the runway. A maintenance record entry stated that the right main landing gear uplock cable assembly, P/N 35-815109, was installed, connected, lubed, and safety wired, in February 1997 (tachometer time 531.0 hours, total airframe time 5,431.3 hours). The aircraft was then jacked and the gear swung to verify correct operation of [the] uplock cable and aircraft step and 'all [was] found to be operating normally.' Following the accident, examination of the airplane revealed that the uplock assembly mechanism was jammed. The bolt which secures the release lanyard to the uplock mechanism had been installed in reverse. The nut on the bolt was on the aft side of the uplock attach point which caused interference between the nut and a metal guide shelf on the airframe. The interference was sufficient to jam the uplock in the locked position.

NTSB Probable Cause Narrative

The failure of the right main gear due to improper repair by the company maintenance personnel.

Event Information

Type of Event Accident
Event Date 4/7/1997
Event Day of the Week Monday
Time of Event 1308
Event Time Zone Central Daylight Time
Event City SAN ANTONIO
Event State TEXAS
Event Country --
Zipcode of the event site 78216
Event Date Year 1997
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SAN ANTONIO INTERNATIONAL
Event Location Nearest Airport ID SAT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 809
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 388
NTSB Notification Source --
NTSB Notification Date Apr 7 1997 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:13PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2702Y
NTSB Number FTW97LA157
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model BE-95
Aircraft Series Identifier BE-95
Aircraft Serial Number TD-34
Certified Max Gross Weight 4000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Dec 11 1996 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AXEL MOHR
Aircraft Owner Street Address 1 CREEKMERE DRIVE
Aircraft Owner City TROPHY CLUB
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 76262
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
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 Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 52F
Departure City FORT WORTH
Departure State TX
Departure Country
Departure Time 1043
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code SAT
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 12L
Runway Length 5519
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --