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NTSB Report
October 29, 1983 · Embraer EMB110-P1 · N764
Blountville, TN
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 29, 1983
Injury Outcomes
16 injuries (16 minor injuries)
Location
Blountville, TN
Aircraft
Embraer EMB110-P1
Tail Number
N764
Operator
Atlantic Southeast Airlines
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ATL84FA031
THE ACFT WAS LANDED WITH THE LANDING GEAR UP. POST ACCIDENT TESTS OF THE LANDING GEAR EXTENSION SYSTEM SHOWED THAT ALL OPERATIONS WERE NORMAL EXCEPT FOR THE MAIN GEAR DOWN-LOCK INDICATIONS. WHEN THE CREW LOWERED THE GEAR FOR LANDING THE NOSE GEAR AND RIGHT MAIN WERE CONFIRMED DOWN BUT THE CAPTAIN SAID THAT HIS VISUAL INSPECTION FROM THE COCKPIT REVEALED THAT THE LEFT MAIN GEAR DID NOT EXTEND. THERE IS NO INDICATION THAT A FLY-BY FOR A TOWER CHECK WAS DONE OR THAT THE MIG LIGHT IN THE WHEEL WELL WAS USED FOR BETTER NIGHT VISION. THE CREW SAID THE ACFT MANUAL WAS USED FOR ADDITIONAL PROCEDURES TO LOWER THE GEAR. WHEN THE FUEL REMAINING REACHED 100 LBS PER SIDE A DECISION WAS MADE TO LAND WITH THE GEARUP. POST ACCIDENT INSPECTION REVEALED THE LEFT MAIN GEAR LOCK PISTON WAS BINDING THUS PREVENTING A DOWN AND LOCKED INDICATION IN THE COCKPIT.
Full Narrative
THE ACFT WAS LANDED WITH THE LANDING GEAR UP. POST ACCIDENT TESTS OF THE LANDING GEAR EXTENSION SYSTEM SHOWED THAT ALL OPERATIONS WERE NORMAL EXCEPT FOR THE MAIN GEAR DOWN-LOCK INDICATIONS. WHEN THE CREW LOWERED THE GEAR FOR LANDING THE NOSE GEAR AND RIGHT MAIN WERE CONFIRMED DOWN BUT THE CAPTAIN SAID THAT HIS VISUAL INSPECTION FROM THE COCKPIT REVEALED THAT THE LEFT MAIN GEAR DID NOT EXTEND. THERE IS NO INDICATION THAT A FLY-BY FOR A TOWER CHECK WAS DONE OR THAT THE MIG LIGHT IN THE WHEEL WELL WAS USED FOR BETTER NIGHT VISION. THE CREW SAID THE ACFT MANUAL WAS USED FOR ADDITIONAL PROCEDURES TO LOWER THE GEAR. WHEN THE FUEL REMAINING REACHED 100 LBS PER SIDE A DECISION WAS MADE TO LAND WITH THE GEARUP. POST ACCIDENT INSPECTION REVEALED THE LEFT MAIN GEAR LOCK PISTON WAS BINDING THUS PREVENTING A DOWN AND LOCKED INDICATION IN THE COCKPIT.
Flight
Event TypeAccident
Event Time21:29 EDT
Nearest AirportTri-City (0nm N)
Runway22
Runway Length6600 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftEmbraer EMB110-P1
Tail NumberN764
Aircraft CategoryAir
DamageSubstantial
OperatorAtlantic Southeast Airlines
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-34 · Turboprop · 783
Seats21
People & Injuries
Injury Summary16 injuries (16 minor injuries)
Fatal0
Serious0
Minor16
Uninjured0
Total16
Crew 1Age 25 · First Class
Conditions
ConditionsVMC
LightDark Night
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point48 / 34 C
Altimeter30.00 inHg
Observation Time01:43
Weather SourceWFAC