Individually Owned: 151,845
Corporate Owned: 143,699
Aircraft Accident/Incident Report
Baltimore, Maryland 21240
Saturday, December 5, 1987 13:45 EST
NTSB Narrative Summary Released at Completion of Accident
TWA FLT 388 (DC-9, N924L) WAS IN CLOUDS CLIMBING TO 7000' WHEN BALTIMORE (BWI) TRACON ADZD THAT AN ACFT (PIPER PA-28R) WAS STRAIGHT AHEAD AT 3 MI DSCNDG FM 6700'. FLT 388 HAD PASSED 6000' & THE CAPT REQUESTED A TRAFFIC AVOIDANCE VECTOR. THE TRACON CTLR INSTRUCTED FLT 388 TO LVL AT 6000' & TURN LEFT TO 270 DEGS, BUT BY THAT TIME, FLT 388 WAS AT 6400'. AS FLT 388 WAS TURNING LEFT, IT BROKE OUT OF CLOUD TOPS & THE AIRCREW SAW THE PIPER PA-28 AT THEIR ONE O'CLOCK POSITION. THE TWA CREW TOOK EVASIVE ACTION. THE TWA CAPT SAID THE PIPER PA-28 PASSED APRX 500' TO 1000' LATERALLY WITH NO VERTICALSEPARATION. THE PIPER PILOT SAID HE SAW FLT 388 AS IT CAME OUT OF THE CLOUD TOP IN A LEFT TURN. HE ESTIMATED THAT FLT 388 PASSED WITH APRX 3/4 MI SEPARATION. THE PIPER WAS VFR & FLT 388 WAS IFR & FLYING IN THE BWI ARSA. THE PLTS OF BOTH ACFT WERE IN CTC WITH BWI TRACON, BUT THEY WERE ON DIFFERENT RADIO FREQS & WERE BEING HANDLED BY DIFFERENT CTLRS. FLT 388 WAS BEING HANDLED BY A TRAINEE CTLR.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Incident |
| Event Date | 12/5/1987 |
| Event Day of the Week | Saturday |
| Time of Event | 1345 |
| Event Time Zone | Eastern Standard Time |
| Event City | BALTIMORE |
| Event State | MARYLAND |
| Event Country | -- |
| Zipcode of the event site | 21240 |
| Event Date Year | 1987 |
| Event Date Month | 12 |
| MidAir Collision Indicator | -- |
| On Ground Collision occurred ? | -- |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | BWI |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1300 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | BWI |
| Elevation of weather observation facility | 146 |
| Distance of event from weather observation facility (units?) | 6 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 6000 |
| Lowest Non-Ceiling Height | 3000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 20 |
| Air Temperature at event time (in degrees celsius) | 4 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| Wind Direction (degrees magnetic) | 280 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 18 |
| 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 | 7 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 5086 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 6 1987 12:00AM |
| NTSB Notification Time | 830 |
| Fiche Number and/or location -used to find docket information | 37456 |
| Date of most recent change to record | Apr 9 2001 10:27AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N924L | N9418N |
| NTSB Number | BFO88IA012A | BFO88IA012B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier | Part 91: General Aviation |
| Type of Flight Plan filed | IFR | None |
| Flight plan Was Activated? | -- | -- |
| Damage | None | None |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | MCDONNELL DOUGLAS | PIPER |
| Aircraft Model | DC-9-32 | PA-28R |
| Aircraft Series Identifier | DC-9-32 | PA-28R |
| Aircraft Serial Number | 47324 | 28R-35130 |
| Certified Max Gross Weight | 111000 | 2750 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 127 | 4 |
| Number of Engines | 2 | 1 |
| Fixed gear or retractable gear | Retractable | Retractable |
| Aircraft, Type of Last Inspection | Unknown | Unknown |
| Date of Last Inspection | -- | -- |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | -- | -- |
| ELT Installed | No | Unknown |
| ELT Activated | Unknown | Unknown |
| ELT Aided Location of Event Site | Unknown | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | 1ST SECURITY BANK OF UTAH | JOSEPH D. LINEHAN |
| Aircraft Owner Street Address | 79 MAIN ST. | 9111 FALLS RUN RD |
| Aircraft Owner City | SALT LAKE CITY | MCCLEAN |
| Aircraft Owner State | VA | |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 22102 | |
| Operator is an individual? | -- | -- |
| Operator Name | TWA | RICHARD DREWYER, MD |
| Operator Same as Owner? | No | No |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | No | No |
| Operator Street Address | 605 THIRD AVE | 4426 COBALT DRIVE |
| Operator City | NEW YORK | HARWOOD |
| Operator State | NY | MD |
| Operator Country | ||
| Operator Zip code | 10158 | 20776 |
| Operator Code | TWAA | |
| Owner has at least one certificate | Yes - certificate holder | None |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | Unknown | Unknown |
| 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 | Personal |
| Second Pilot on Board | Yes | No |
| Departure Point Same as Event | No | No |
| Departure Airport Code | BWI | LNS |
| Departure City | BALTIMORE | LANCASTER |
| Departure State | MD | PA |
| Departure Country | ||
| Departure Time | 1340 | 1300 |
| Departure Time Zone | EST | EST |
| Destination Same as Local Flt | -- | -- |
| Destination Airport Code | HAR | CGS |
| Destination City | HARRISBURG | COLLEGE PARK |
| Destination State | PA | MD |
| Destination Country | ||
| Specific Phase of Flight | Climb | Descent |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM | Jan 2 2001 10:36AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 0 | 0 |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |