Boeing 747-121

Aircraft model · Fixed wing multi engine · Airplane · registry codes 138487A, 1384871

Manufacturer (registry)
BOEING
Model
747-121
Registry codes
138487A, 1384871
Registered
1 aircraft
Type
Fixed wing multi engine
Engines
4 · Turbo-fan
Seats
495
Weight class
20,000 lb and over
Certification
Type certificated
Data sheet
TCDSA20WE
Holder
The Boeing Company

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all.

On this page

Aircraft by year built · 23

1969Registered nowDeregistered2026
Aircraft by the year they were built: 23 aircraft
19694
197012
19716
19721

Airworthiness directives that may apply · 459

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

1970In forceSuperseded2026
ADs by the year they took effect: 523 ADs
19706
19716
19722
19741
197510
19761
19771
19782
19793
19808
19814
19824
19837
19844
19853
198615
198712
19883
198913
199021
199114
199216
199311
199418
199514
19968
19978
199816
199916
200023
200126
200211
200319
200411
200522
200616
200713
200819
200915
201015
201111
201210
201312
20149
20156
20167
20174
20184
20203
20215
20222
20237
20241
20252
20263
See all 527 ADs
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('138487A', '1384871'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number 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.

Information bulletins that may apply · 7

Query with SQL
duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('138487A', '1384871'))
  GROUP BY s.saib_number ORDER BY issue_date 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.

Registered aircraft · 1

Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('138487A', '1384871')
  ORDER BY n_number"

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 investigations · 15

Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.

NTSB MIA96FA013Accident · No injuriesField investigationFinal reportBoeing 747-121 · Miami, FLfailure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine.Oct 23, 1995 · N613FF · Substantial damageNTSB DCA93MA033Accident · No injuriesClass 1 · MajorFinal reportBoeing 747-121 · Anchorage, AKThe lateral separation of the no. 2 engine pylon due to an encounter with severe or possibly extreme turbulence that resulted in dynamic multi-axis lateral loadings that exceeded the ultimate lateral load-carrying capability of the pylon, which was already…Mar 31, 1993 · N473EV · Substantial damageNTSB BFO92IA046Incident · No injuriesIncident investigationFinal reportBoeing 747-123 · Louisville, KYInadequate obstacle clearance, which resulted in on ground collision with a blast fence. Contributing was inadequate instruction from ground personnel.Mar 19, 1992 · N681UP · Minor damageNTSB DCA89RA014Accident · 270 fatalForeign investigationBoeing 747-121 · Lockerbie, United KingdomDec 21, 1988 · N739PANTSB DCA83RA001Accident · No injuriesForeign investigationBoeing 747-121 · PakistanAug 4, 1983 · N738PANTSB LAX79IA092Incident · 1 fatalClosedBoeing 747 · Pacific Ocean (Pacific Ocean)Sep 30, 1979 · N750PA · No damageNTSB DCA77RA014Accident · 574 fatalClosedBoeing 747 · Tenerife, SPMar 27, 1977 · N736PA · 2 aircraft · DestroyedNTSB NYC77IA041Incident · No injuriesClosedBoeing 747 · London, United KingdomMar 24, 1977 · N747PA · No damageNTSB DCA72RZ014Accident · No injuriesClosedBoeing 747 · London, United KingdomMar 8, 1972 · N738PA · 2 aircraft · Substantial damageNTSB LAX72IL014Incident · No injuriesClosedBoeing 747 · Los Angeles, CAAug 24, 1971 · N748PA · Minor damageNTSB DCA72AZ002Accident · Serious injuriesClosedBoeing 747 · San Frncsco, CAJul 30, 1971 · N747PA · Substantial damageNTSB NYC71AN088Accident · Serious injuriesClosedBoeing 747 · Wilmington, NCFeb 7, 1971 · N750PA · Minor damageNTSB NYC71AN054Accident · Serious injuriesClosedBoeing 747 · Nantucket, MANov 4, 1970 · N739PA · Minor damageNTSB SEA70IS044Incident · No injuriesClosedBoeing 747 · Moses Lake, WAMay 24, 1970 · N7470 · Minor damageNTSB NYC70IN085Incident · No injuriesClosedBoeing 747 · N.Atlantic Ocean (Atlantic Ocean)Feb 9, 1970 · N736PA · No damage
Query with SQL
duckdb -csv -c "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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('138487A', '1384871')
  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.

FAA incident reports · 37

Matched to this model through the registry, by N-number and event date, checked against the reported make and model.

See all 37 incident reports
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('138487A', '1384871')
  ORDER BY event_date DESC, report_number 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.

Service difficulty reports · 3,030

See all 3,030 difficulty reports
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '747121'
  ORDER BY difficulty_date 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.

STCs that may be installed · 465

Approved for this model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

See all 465 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('138487A', '1384871')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

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.

The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
  WHERE m.match_key = '747100' AND m.code NOT IN ('138487A', '1384871')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

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.