Individually Owned: 150,657
Corporate Owned: 137,281
Anchorage Airport
Aircraft Accident/Incident Report
Anchorage, Alaska 99502
Wednesday, December 9, 1987 15:58 AST
NTSB Narrative Summary Released at Completion of Accident
DRG ARR IN HVY TRAFFIC, REEVE FLT 726 (BOEING 727) & WILBURS FLT 304 (CESSNA 402B, N969JW) RECD RADAR ADZYS FOR VISUAL APCHS TO RWYS 6L & 6R, RESPECTIVELY. SUBSEQUENTLY, BOTH FLTS WERE CLRD TO LND. AT 1555:04, THE LCL TWR CTLR TRANSMITTED THAT THE WND AT THE APCH END OF RWY 6R WAS FM 340 DEG AT 9 KTS & THE MIDFLD WND WAS 330 DEG AT 7. AT APRX 1557, FLT 726 LNDD ON RWY 6L. APRX 69 SEC LATER, AS FLT 304 WAS X-ING THE THRESHOLD (THR) OF RWY 6R AT ABOUT 100' AGL, THE ACFT ENCTRDWAKE TURBC (W/T) & ROLLED SHARPLY TO THE RGT, BYD 90 DEG. THE PLT CORRECTED WITH AILERON & PWR, BUT THE ACFT LOST ALT & HIT THE GND BFR RCVRY. THE WND DRG THE 1601 WX OBS WAS 020 DEG AT 5 KTS. RWY CTRLNS WERE 700' APART, THRESHOLD OF RWY 6LWAS 4600' BYD THE THRESHOLD OF RWY 6R. THE APCH CTLR DID NOT ADZ EITHER FLT OF THE OTHER'S PSN, NOR DID THE TWR CTLR GIVE A W/T ADZRY TO FLT 304. CALCULATIONS SHOWED VORTICES COULD HAVE DRIFTED FM RWY 6L TO RWY 6R IN AS LITTLE AS 28 SEC.FAA HNDBK ADDRESSED W/T ADZY FOR PARALLEL RWY OPNS WITH LESS THAN 2500' SEPN, BUT DID NOT ADDRESS OFFSET THRESHOLDS.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 12/9/1987 |
| Event Day of the Week | Wednesday |
| Time of Event | 1558 |
| Event Time Zone | Atlantic Standard Time |
| Event City | ANCHORAGE |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99502 |
| Event Date Year | 1987 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | ANCHORAGE |
| Event Location Nearest Airport ID | ANC |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 144 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1601 Atlantic Standard Time |
| Direction of event from weather observation facility (degrees) | 30 |
| Weather Observation Facility ID | ANC |
| Elevation of weather observation facility | 144 |
| Distance of event from weather observation facility (units?) | 25 |
| Time Zone of the weather observation | AST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 12000 |
| 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) | 90 |
| Air Temperature at event time (in degrees celsius) | -8 |
| Dew Point at event time (in degress fahrenheit) | -12 |
| Wind Direction (degrees magnetic) | 340 |
| 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) | 28 |
| Density Altitude (feet) | 225 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | 3 |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 2213 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 9 1987 12:00AM |
| NTSB Notification Time | 1605 |
| Fiche Number and/or location -used to find docket information | 35773 |
| Date of most recent change to record | Dec 13 2000 3:02PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N969JW |
| NTSB Number | ANC88FA019 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 402B |
| Aircraft Series Identifier | 402B |
| Aircraft Serial Number | 402B0328 |
| Certified Max Gross Weight | 6300 |
| 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 | 10 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Nov 23 1987 12:00AM |
| Airframe hours since last inspection | 71 |
| Airframe Hours | 5301 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | WILBURS INC. |
| Aircraft Owner Street Address | 1740 E 5TH AVE. |
| Aircraft Owner City | ANCHORAGE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 99501 |
| Operator is an individual? | -- |
| Operator Name | WILBUR'S INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1740 E. 5TH AVENUE |
| Operator City | ANCHORAGE |
| Operator State | AK |
| Operator Country | |
| Operator Zip code | 99501 |
| Operator Code | EMSA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | External Load |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | VDZ |
| Departure City | VALDEZ |
| Departure State | AK |
| Departure Country | |
| Departure Time | 1510 |
| Departure Time Zone | AST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | ANC |
| 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 10:35AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 6R |
| Runway Length | 10897 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |