Aladdin Air Heliport Airport
Aircraft Accident/Incident Report

Bryce Canyon, Utah 84717
Tuesady, August 4, 1998 14:30 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was departing to the east when he noticed a drop in rotor rpm. He rolled the throttle, but no power was being produced from the engine. He landed straight ahead and performed a high altitude run on landing. After touching down, the helicopter slid approximately 30 to 40 feet. The left skid was caught in ground brush, and the left front support of the landing gear was broken. The tail rotor blades were bent, and while still rotating, impacted the skid bar, shearing the bar off and separating the gear box from the tail. The helicopter came to rest on its left side. Postaccident examination of the aircraft by an FAA inspector revealed the turbocharger had leaked oil into the induction system. According to his accident report, 'The slight power loss appears to have been caused by the oil leakage pass[ing] the seals in the turbocharger.'

NTSB Probable Cause Narrative

A partial loss of engine power due to an oil leak in the turbocharger system. Factors were high vegetation and high density altitude.

Event Information

Type of Event Accident
Event Date 8/4/1998
Event Day of the Week Tuesday
Time of Event 1430
Event Time Zone Mountain Daylight Time
Event City BRYCE CANYON
Event State UTAH
Event Country --
Zipcode of the event site 84717
Event Date Year 1998
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ALADDIN AIR HELIPORT
Event Location Nearest Airport ID UT77
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 7550
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1459 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID BCE
Elevation of weather observation facility 7586
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 9000
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) 30
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 10748
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 760
NTSB Notification Source --
NTSB Notification Date Aug 4 1998 12:00AM
NTSB Notification Time 1652
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 16 2001 11:56AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8619M
NTSB Number FTW98LA342
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Enstrom
Aircraft Model F-28F
Aircraft Series Identifier F-28F
Aircraft Serial Number 704
Certified Max Gross Weight 2600
Aircraft Category Helicopter
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TERRY L. ANDREWS
Aircraft Owner Street Address 145 S MAIN ST., P. O. BOX 2
Aircraft Owner City PANGUITCH
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84759
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 AQ6A
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) Business
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code UT77
Departure City
Departure State
Departure Country
Departure Time 1630
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
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 Feb 20 2001 6:29PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight Yes
Air Medical Flight No
Medical Flight --