Kotzebue Airport
Aircraft Accident/Incident Report

Kotzebue, Alaska 99752
Thursday, June 28, 2007 18:15 AKD

NTSB Narrative Summary Released at Completion of Accident

The airline transport pilot reported that at the start of his second flight of the day, the airplane's brakes appeared to be locked, but the parking brake was not set. He was able to unlock the brakes by manipulating the parking brake several times, applying engine power, and by moving the nose gear steering via the rudder pedals several times. The airplane brakes released, but he did not report the brake problem to the operator. While landing at the end of the third flight, the pilot said that as soon as all three landing gear tires were on the ground, the airplane began a gradual right turn. He said he applied left brake and left rudder with minimal effect. The left main landing gear tire produced a skid mark on the runway as the airplane overshot the planned taxiway exit, and then departed off the right edge of the runway. The airplane received structural damage to the fuselage and wing spars. The airplane was equipped with hydraulic brakes, and a hydraulic parking brake valve. The parking brake valve is activated by a cable between the valve and the parking brake handle. Application of the airplane's brakes via pedal pressure, and then pulling out on the parking brake handle, sets the parking brake. After recovery from the ditch, an FAA inspector, accompanied by a mechanic from the operator, examined the airplane. Their examination revealed that the parking brake cable was not securely fastened to the airframe by its attaching clamp. This could allow the outer cable housing to move independent of the inner wire attached to the parking brake valve, and could prevent parking brake release. Partial valve activation could hold hydraulic brake pressure on the airplane's brakes, if the brakes were touched during flight.

NTSB Probable Cause Narrative

Locked parking brakes and the operator's maintenance personnel's failure to properly secure the parking brake cable at its fuselage attaching clamp.

Event Information

Type of Event Accident
Event Date 6/28/2007
Event Day of the Week Thursday
Time of Event 1815
Event Time Zone --
Event City Kotzebue
Event State ALASKA
Event Country --
Zipcode of the event site 99752
Event Date Year 2007
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 665305N
Event Location Longitude 1623555W
Event Location Airport Kotzebue
Event Location Nearest Airport ID PAOT
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 11
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1824 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID PAOT
Elevation of weather observation facility 11
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height 4300
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 23167
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date Jun 28 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 31 2008 11:52AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-AL FAI FSDO 01

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3535F
NTSB Number ANC07LA059
Missing Aircraft Indicator --
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 Piper
Aircraft Model PA-31
Aircraft Series Identifier --
Aircraft Serial Number 31-7952200
Certified Max Gross Weight 7250
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 9
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 1 2007 12:00AM
Airframe hours since last inspection 48
Airframe Hours 25529
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Frontier Flying Service Inc.
Aircraft Owner Street Address 5245 Airport Industrial Rd.
Aircraft Owner City Fairbanks
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99709
Operator is an individual? No
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 FFSA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PASK
Departure City Selawik
Departure State AK
Departure Country USA
Departure Time 1745
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code PAOT
Destination City Kotzebue
Destination State AK
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 27 2008 11:51AM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location 26
Runway Length 5900
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --