Falcon Field Airport
Aircraft Accident/Incident Report

Mesa, Arizona 85201
Saturday, August 9, 1997 12:30 MST

NTSB Narrative Summary Released at Completion of Accident

After a 3 hr training flight, the pilot put the gear selector down & obtained a green light indication. During main gear touchdown, the gear warning horn sounded, & the pilot performed a successful go-around. Subsequent attempts (using both the normal & emergency procedures to obtain a green down light for the landing gear) were unsuccessful. The right main landing gear collapsed during the final landing. Postaccident exam of the aircraft revealed that the right main gear upper side link had fractured, separating it from the lower side link. The associated push-pull tube for the upper side link was bent, and the attaching bolt was sheared. Metallurgical exam of the parts disclosed that all fractures & bends were the result of overload. This aircraft had sustained damage, while parked at another airport ramp. This occurred as a Boeing 727 was departing the ramp. Its jet blast lifted the Cessna off the ground, then it was abruptly deposited back on the ramp. Following the incident, the aircraft was ferried to a repair facility. Records of the repair showed that the gear work was limited to jacking the aircraft & inspecting the nose gear assembly, actuator and bellcrank, and nose structure. A gear retraction and extension check was also performed. The manufacturer stated that following the jet blast incident, the airplane should have undergone an extensive re-rigging of the gear to thoroughly inspect the system.

NTSB Probable Cause Narrative

inadequate maintenance inspection of the landing gear system, following a prior incident, due to the mechanic's failure to follow the service manual instructions.

Event Information

Type of Event Accident
Event Date 8/9/1997
Event Day of the Week Saturday
Time of Event 1230
Event Time Zone Mountain Standard Time
Event City MESA
Event State ARIZONA
Event Country --
Zipcode of the event site 85201
Event Date Year 1997
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport FALCON FIELD
Event Location Nearest Airport ID FFZ
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 1392
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1235 Mountain Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID FFZ
Elevation of weather observation facility 1392
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 20000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1258
NTSB Notification Source --
NTSB Notification Date Aug 9 1997 12:00AM
NTSB Notification Time 1245
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:30PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8139M
NTSB Number LAX97LA277
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 310
Aircraft Series Identifier 310
Aircraft Serial Number 0139
Certified Max Gross Weight 5100
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 1 1996 12:00AM
Airframe hours since last inspection 381
Airframe Hours 7924
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AEX AIR INCORPORATED
Aircraft Owner Street Address 1026 SOUTH LAGOON DRIVE
Aircraft Owner City GILBERT
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85233
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 220 S. RIVER DRIVE
Operator City TEMPE
Operator State AZ
Operator Country
Operator Zip code 85281
Operator Code A3XA
Owner has at least one certificate Yes - certificate holder
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code PHX
Departure City PHOENIX
Departure State AZ
Departure Country
Departure Time 835
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code FFZ
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 22L
Runway Length 5100
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --