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NTSB investigations

20,559 cases where the phase of flight was Initial climb.

Cases, newest first

Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
    crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
    current_codes AS (
      SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
        row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
      FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
      WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
        AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
    ),
    phases AS (
      SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
      FROM current_codes WHERE n = 1
      UNION ALL
      SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
      FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
      WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
    ),
    case_phases AS (
      SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
      FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
      LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
      WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
    )
  SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB MKC87FA138Accident · Serious injuriesField investigationFinal reportAero Commander 500-B · Mason City, IAThe airplane was in a normal appearing climb after takeoff when it pitched up to a 70 to 80 degree attitude, stalled, dropped the right wing, then leveled the wings and hit the ground in a near-flat attitude. The weight and CG were within limits. No preimpact…Jul 14, 1987 · N9391R · DestroyedNTSB MIA87LA206Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Hastings, FLThe plt stated that he had just lifted from the 2300 ft wet grass strip, where he estimated the grass to be about 6 in to 1 ft high, when he sustained a partial power loss. The acft struck an embankment at the end of the rwy & sheared the gear. Air temp in…Jul 14, 1987 · N4647F · Substantial damageNTSB DEN87LA180Accident · Minor injuriesLimited investigationFinal reportCessna 172K · Tierra Amrilla, NMNo witnesses were found who had seen the accident. The man believed to be the plt gave the investigating police officer an assumed name. The wreckage dissappeared soon after the crash and has not been found to date. The acft attempted a takeoff with four…Jul 13, 1987 · N84704 · Substantial damageNTSB CHI87LA165Accident · Minor injuriesLimited investigationFinal reportChampion 7EC · Lake Monroe, INThe float equipped acft took off from Lake Monroe with 2 rated plts on board. The plt-in-command (PIC) stated that the takeoff distance may have been about 20% longer than normal. He said that after climbing about 200 to 250 ft, the coplt began a rgt turn,…Jul 13, 1987 · N4365C · Substantial damageNTSB CHI87LA164Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-181 · Vincennes, INThe pilot attempted to takeoff with the fuel tank selector selected to an empty tank. Shortly after lift-off the engine stopped and the acft skidded across a road and struck an embankment.Jul 13, 1987 · N8155A · Substantial damageNTSB LAX87DVG08Accident · Serious injuriesFinal reportBudde Cassutt CB-1 · Winter, CAA homebuilt cassutt racer crashed during initial takeoff climb after a loss of power. The pilot assembled the experimental racing airplane in preparation for a flight to an air race and had completed a series of starts and run-ups. 'Everything checked normal'…Jul 12, 1987 · N102 · Substantial damageNTSB CHI87FA162Accident · 5 fatalField investigationFinal reportCessna 180 · New Brighton, MNWitnesses observed the floatplane start a climbing left turn shortly after becoming airborne from a water takeoff. The aircraft's right wing dropped and the aircraft dove into the water where it struck the surface right wing first, flipped inverted and sank.…Jul 12, 1987 · N5027E · DestroyedNTSB FTW87DRA06Accident · No injuriesFinal reportGrumman G-164B · Beaumont, TXDrg the initial climb after takeoff, the eng began losing RPM & the plt was unable to return to the arpt. He selected a pasture area for an emerg landing, but the eng contd losing power. While landing on soft terrain with tall wet grass, the acft nosed over.…Jul 11, 1987 · N6881K · Substantial damageNTSB MIA87FA203Accident · Serious injuriesField investigationFinal reportRockwell 112A · Vero Beach, FLAfter take-off, the rt wing of the acft hit the ground about 1500 ft down the north-south rwy. The plt stated that the acft was rt wing heavy and opposite aileron had no effect. Surface winds at Vero Beach, about 8 miles east of the accident site were 090…Jul 10, 1987 · N1440J · DestroyedNTSB FTW87LA169Accident · No injuriesLimited investigationFinal reportMaule M-4-210C · Houston, TXThe instructor plt (CFI) stated that drg the preflt, he & the student drained about 1 pint of water from the left wing tank & a small amount from the lower eng sump drain. No water was found in the rgt tank. The left tank was selected & a 12 to 15 min eng…Jul 10, 1987 · N40684 · Substantial damageNTSB CHI87DER12Accident · No injuriesFinal reportTaylorcraft F21A · Int'L Falls, MNWhile on initial climb the aircraft encountered downdrafts and was unable to climb over high terrain and trees. When it became obvious to the pilot that he was not going to be able to climb over these obstacles, he closed the throttle and attempted to turn…Jul 10, 1987 · N2006L · Substantial damageNTSB FTW87LA163Accident · Minor injuriesLimited investigationFinal reportPiper PA-22-135 · Tulsa, OKDrg the initial climb after takeoff, the acft's eng lost pwr. The plt landed the acft on a median in a residential & shopping area, where it nosed over. An exam & an opnl check of the eng revealed no reason for the loss of pwr.Jul 8, 1987 · N1175C · Substantial damageNTSB ATL87DLT02Accident · Minor injuriesFinal reportGulfstream-Schweizer G164B-600 · Union City, TNThe ag-acft lost power while turning, shortly after departure from a field. During the subsequent forced ldg, the acft struck a fence and nosed over. The engine was torn from the acft during the impact sequence. Post-crash examination of the acft engine by an…Jul 8, 1987 · N8046K · Substantial damageNTSB FTW87DRG03Accident · Serious injuriesFinal reportWayne Hooks Cassutt III-M · Burnet, TXOn July 7,1987, a cassutt 111M, N3790A, impacted the runway at kate craddock field (T-27) Burnet Texas. The pilot was conducting the initial test flight of the home built aircraft when the canopy came open. The pilot attempted to land the aircraft while…Jul 7, 1987 · N3790A · Minor damageNTSB LAX87DUJ07Accident · Minor injuriesFinal reportKiesel Midget Mustang · Window Rock, AZThe aircraft lost power shortly after takeoff and collided with a dirt bank during the subsequent forced landing. Engineexamination revealed an open intake valve on the number 4 cylinder and the pilot stated a 'bent and cracked crankshaft from a prior…Jul 5, 1987 · N68WK · Substantial damageNTSB SEA87LA131Accident · Minor injuriesLimited investigationFinal reportRockwell S-2R · Glenns Ferry, IDDuring takeoff with a quartering tailwind about 3/4 way down the runway the aircraft settled back onto the runway. There was not enough room to stop the aircraft. The aircrafts main gear caught on a fence and tall wheat with the aircraft coming to rest…Jul 4, 1987 · N5580X · DestroyedNTSB FTW87FA161Accident · Serious injuriesField investigationFinal reportPiper PA-24-250 · El Paso, TXEscaping hot exhaust gas from the broken exhaust manifold melted the sealant from several areas of the firewall where hoses, wires, etc., pass through to the cocipit area. Heavy black smoke produced by smoldering wire insulation, fire shield material, etc.,…Jul 4, 1987 · N5777M · DestroyedNTSB DEN87LA166Accident · Serious injuriesLimited investigationFinal reportPiper PA-18-150 · Las Vegas, NMThe plt reported that he experienced a departure stall after take off. A witness reported that the plt attempted a steep turn immediately after takeoff and that the acft appeared to stall. The left wing went down and the acft began an uncontrolled descent…Jul 4, 1987 · N9406P · Substantial damageNTSB NYC87LA195Accident · Serious injuriesLimited investigationFinal reportAeronca 7AC · Jamestown, NYThe student plt rented the acft & flew to a field aprx 40 mi from the dep arpt. After landing, a passenger boarded the acft. The student started to takeoff again. Drg takeoff, the acft lifted off, but would not climb sufficiently to clear trees at the dep end…Jul 3, 1987 · N2460E · Substantial damageNTSB FTW87DRD09Accident · No injuriesFinal reportCessna T188C · Rayville, LAThe aircraft had to take off eastbound due to obstructions at the west end of the strip. The six to eight knot wind was variable from a right crosswind to a slight tailwind. Investigation revealed the aircraft's weight exceeded that established by the…Jul 2, 1987 · N3239J · DestroyedNTSB MIA87IA195Incident · No injuriesIncident investigationFinal reportDouglas DC3A · Hilliard, FLAccording to the FAA the pilot stated that just after he rotated for takeoff the acft lost power in the left eng. He then aborted the takeoff, set the acft back on the runway & it slid off the left side into some bushes. The plts did not submit an operator…Jun 30, 1987 · N31MS · Minor damageNTSB ANC87LA086Accident · No injuriesLimited investigationFinal reportGrumman G-44 · Wood River, AKAccording to the pilot he was taking off and after initial climbout, approximately 50 feet above the water, the airplane stopped climbing. The engine sounded normal but the aircraft would not accelerate. The pilot stated that he stalled the aircraft on…Jun 30, 1987 · N176MS · Substantial damageNTSB NYC87LA193Accident · Serious injuriesLimited investigationFinal reportPiper PA-23-250 · Sandy Creek, NYThe pilot of the PA-23-250 attempted a takeoff on a 2200 ft long private airstrip with a grass runway. Witnesses reported the aircraft was airborne further down the runway than normal. The aircraft did not clear the trees on the departure end of the runway.…Jun 29, 1987 · N4627P · Substantial damageNTSB SEA87LA125Accident · Serious injuriesLimited investigationFinal reportPiper PA-32R-300 · Bend, ORShortly after takeoff a partial loss of power occurred and the pilot was not able to maintain altitude and airspeed. The pilot was not able to retract the gear due to the low airspeed because the automatic gear extension system was not in the override…Jun 28, 1987 · N8713E · DestroyedNTSB NYC87LA143Accident · Minor injuriesLimited investigationFinal reportCessna 172 · Block Island, RIThe plt rprtd that drg takeoff, the eng lost power. Subsequently, the acft crashed into an area of brush on level terrain about 1/2 mi off the departure end of the rwy. The operator rprtd that in a conversation with the plt, the plt indicated that he had…Jun 28, 1987 · N79041 · Substantial damageNTSB LAX87LA249Accident · No injuriesLimited investigationFinal reportPiper PA-28-161 · Auberry, CADuring an approach into a private airstrip, the student pilot touched-down, then decided that there was not enough stopping distance and elected to go-around. On the initial climb-out the aircraft struck an object that made the aircraft yaw right then left.…Jun 28, 1987 · N2856H · Substantial damageNTSB ATL87DEI07Accident · Serious injuriesFinal reportEipper MX2 · Newbury, OHThe ultralight had not been flown for 8 months. Plt rpted that after takeoff the eng quit. Fuel had not been added since prior oct. Examination of eng revealed cracks in the exhaust system, evidence of overheating and recent scoring of cylinders. Witness…Jun 28, 1987 · N3924L · Substantial damageNTSB SEA87FA124Accident · 2 fatalField investigationFinal reportBeech 77 · Spokane, WAOn takeoff the aircraft climbed to 50-75 ft AGL, descended in a landing attitude, touched down on the runway near the departure end and took off again. When approaching high obstructions off the end of the runway, the aircraft entered a steep climb, rolled…Jun 27, 1987 · N37292 · DestroyedNTSB FTW87LA153Accident · No injuriesLimited investigationFinal reportGrumman American AA-5A · Marietta, OKThe plt rprtd that drg takeoff fm a grass rwy, the acft stalled after climbing about 10 ft AGL. He said that torque pulled the nose of the acft to the left & he tried to recover. However, there was insufficient alt & the acft hit the tops of trees, then fell…Jun 27, 1987 · N9874U · Substantial damageNTSB FTW87DPA03Accident · 2 fatalFinal reportRollins Starlite · Arlington, TXThis was the first flight for the 156 hour private pilot in this make and model airplane, however, he had previously made several high speed taxi runs in it. According to witnesses, the pilot used only about half throttle for the attempted takeoff. The…Jun 27, 1987 · N172SL · DestroyedNTSB ATL87LA193Accident · Serious injuriesLimited investigationFinal reportBellanca 14-13-2 · Hamilton, OHThe plt rptd that he made a non-std rt-hand departure after t/o from rwy 29, to avoid traffic departing to the left. The acft began to sink as he attempted to climb over the lee side of a 200 ft-high ridge less than 1 mile northwest of the arpt. The acft…Jun 27, 1987 · N74259 · Substantial damageNTSB ATL87LA188Accident · Minor injuriesLimited investigationFinal reportPiper PA-28R-201T · Bowling Green, OHThe instructor (CFI) rprtd he preflighted the acft & taxied to the refueling area. While there, he was apchd by another plt who wanted to go with him on this flt. They agreed & the CFI moved to the rgt seat. They commenced the start-up, run-up & takeoff…Jun 25, 1987 · N38344 · DestroyedNTSB NYC87LA183Accident · No injuriesLimited investigationFinal reportCessna 150J · Olcott, NYA student pilot practicing touch and go landings experienced an engine power loss on takeoff. During an approach to an open field for an emergency landing, the engine restarted. The pilot decided to return to the arpt. Upon entering downwind, the engine quit.…Jun 24, 1987 · N51333 · Substantial damageNTSB DEN87FA159Accident · 1 fatalField investigationFinal reportMooney M20A · Reserve, NMThe plt was ferrying his acft from Reserve airport, NM, to jewitt mesa airport, apache creek, NM. There was a mature thunderstorm over the northern mountain ridge producing what one witness described as winds 'really blowing hard.' She said she saw the acft…Jun 24, 1987 · N6060X · DestroyedNTSB SEA87LA122Accident · No injuriesLimited investigationFinal reportCessna 150B · White City, ORAfter about one hour of flight and during a takeoff the engine ceased operating. The pilot attempted to land the aircraft onto the remaining runway but an overrun occurred. The aircraft rolled through a fence and then a ditch with the nose gear breaking off.…Jun 23, 1987 · N7352X · Substantial damageNTSB MKC87LA126Accident · No injuriesLimited investigationFinal reportCessna 150L · Antioch, NEThe rwy was 1900 feet long with 5500 ft density altitude. With pilot and passenger and 30 degrees of flaps and calm wind, airplane lifted off, cleared fence and road. Pilot said he lowered the nose and raised flaps to 20 degrees but may have retracted them…Jun 21, 1987 · N1363Q · Substantial damageNTSB FTW87LA150Accident · Serious injuriesLimited investigationFinal reportCessna 150J · Chelsea, OKThe non-rated plt attempted a downwind takeoff from a 1450' pvt grass strip. The strip was soft from recent rain & contained grass & weeds which were 6 to 7 inches hi. After taking off, the acft would not climb fast enough to clear obstacles. Subsequently, it…Jun 21, 1987 · N51267 · Substantial damageNTSB ATL87LA177Accident · No injuriesLimited investigationFinal reportCessna 150M · Goldsboro, NCStudent plt had dep apt for purpose of practicing ldgs. At about 400 ft he noted a pwr loss and rough running eng. He reduced the throttle setting and the roughness contd. Further reductions were made to the point where flight could not be maintained. The…Jun 21, 1987 · N704MW · Substantial damageNTSB MKC87LA117Accident · No injuriesLimited investigationFinal reportCessna 150L · East Lynne, MOThe PIC had been practicing t&g lndgs for the previous hour or so and decided to stop briefly to wait out rain showers in the area. After waiting the PIC fueled the acft with 10 gal of avn fuel and taxied to the active rwy to return to his originating arpt.…Jun 20, 1987 · N17297 · Substantial damageNTSB MIA87FA189Accident · 2 fatalField investigationFinal reportBeech 23 · Miramar, FLAfter the plt lndd, the acft was serviced with 58.9 gal of fuel. Its fuel capacity was 60 gal. Subsequently, when the plt took off, the acft remained on the rwy for about 2500' of the available 3000'. After lift-off, the acft entered a rgt turn & reached a…Jun 20, 1987 · N2387J · DestroyedNTSB MIA87FA188Accident · 1 fatalField investigationFinal reportCessna 172I · Ellisville, MSBfr the flt, the arpt owner adzd the plt not to fly, since he (the plt) appeared to be intoxicated. The plt 'said ok & left,' but returned aprx 1 hr later. A witness rprtd the plt atmtd to takeoff with full flaps. Drg the takeoff roll, theacft drifted off the…Jun 20, 1987 · N8446L · Substantial damageNTSB LAX87LA241Accident · Serious injuriesLimited investigationFinal reportCessna TU206C · S. Lake Tahoe, CAJust after lift-off during a downwind departure the pilot decided that the acft was not climbing normally and aborted the take-off at mid-field. The pilot reduced power and extended 40 degrees of flaps. The pilot then decided that he would not be able to…Jun 20, 1987 · N1177T · Substantial damageNTSB DEN87LA157Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Ray, NDThe plt reports that he was departing from an aerial app operating area. He said there was a tree line along a road with an opening and the takeoff was made toward the opening. There were wires across the opening and the poles were obscured by the trees on…Jun 20, 1987 · N68012 · Substantial damageNTSB DEN87LA156Accident · No injuriesLimited investigationFinal reportTalbott Avid Flyer · Palisade, COThe plt reported that he had just finished several short flights on the recently certified homebuilt acft to fly off the hr restriction. He had completed the shutdown checklist and had the fuel valve shut off. He restarted the eng without the checklist to…Jun 20, 1987 · N186TF · Substantial damageNTSB CHI87DEX07Accident · Serious injuriesFinal reportBoeing E75 · Mccordsville, INDuring initial climb the engine sustained a total power failure and the pilot attempted to return to the airport. The aircraft impacted in a soybean field approximately 200 feet short of the runway in a 20 degree nose down attitude. Investigation revealed the…Jun 19, 1987 · N550LR · DestroyedNTSB MIA87FA187Accident · 1 fatalField investigationFinal reportMooney M20J · Merritt Island, FLAccording to witnesses, the plt performed a hasty preflt & an abbreviated run-up bfr taking off. After lift-off, the acft bgn a rgt turn, then rolled rapidly to the left & crossed over the extended rwy centerline twd a left downwind. Subsequently, it rolled…Jun 18, 1987 · N5630K · DestroyedNTSB MIA87FA186Accident · 2 fatalField investigationFinal reportBellanca 8GCBC · Panama City, FLThe purpose of the flt was to check out a new plt in banner towing operations. The first flt had been completed, the banner dropped & the second banner was engaged. Witnesses saw the acft make the steep climb after pick-up normally associated with banner…Jun 18, 1987 · N7620S · DestroyedNTSB FTW87LA146Accident · Minor injuriesLimited investigationFinal reportCessna 150F · Red Oak, TXThe pilot stated the aircraft did not appear to lift properly. It gained about 50 feet altitude after liftoff but then settled back to the ground. The departure runway was concrete and was 1200 feet in length. The field elevation was 650 feet MSL and the…Jun 17, 1987 · N7992F · Substantial damageNTSB FTW87FA151Accident · Serious injuriesField investigationFinal reportCessna A188B · New Taiton, TXAcft was observed departing on rwy 35 of a 4,250' pvt ag strip after having been loaded to near capacity with 46% nitrogen fertilizer. Acft lifted off, crossed a fence parallel to the rwy and struck a fence that was perpendicular to the north end of the rwy.…Jun 17, 1987 · N731XQ · Substantial damageNTSB DEN87LA158Accident · No injuriesLimited investigationFinal reportCessna 170B · Monument Valley, UTThe plt landed to take pictures in Monument Valley off designated arpt. On takeoff the plt reported that the acft could not maintain sufficient altitude and that he had to make a forced landing. The plt did not report any mechanical failure or malfunction.Jun 16, 1987 · N2398D · Substantial damage