# Service difficulty reports: N979RP

A list on [N979RP](https://openairdocs.org/aircraft/N979RP.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 3 · 126 reports

- [SDR R61A2026101800305](https://openairdocs.org/sdr/R61A2026101800305.md): Skin · cracked · Oct 18, 2026 · N979RP · Emb ERJ170100SE · Wing, Plate/Skin
  > FOUND CRACK ON RT WING LOWER SKIN, INBOARD OF RIB 17 AND AFT OF SPAR 1. PERFORMED PERMANENT REPAIR AT RT WING LOWER SKIN RIB 17 IAW ETD2026-170-017594, REV A.
- [SDR R61A2026012800030](https://openairdocs.org/sdr/R61A2026012800030.md): Module · faulted · Jan 28, 2026 · N979RP · Emb ERJ170100SE · Leading Edge Slat Control System
  > SLAT FAIL ON APPROACH. MSG CLEARED WITH QRH. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. PERFORMED AIOP A2 MODULE RESET.
- [SDR R61A2024061400258](https://openairdocs.org/sdr/R61A2024061400258.md): Floor Support · corroded · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > PAX CABIN FLOOR STRUCTURE DOUBLER AT FRAME 12 - 16 LBL 50 FOUND TO HAVE CORROSION. REPLACED DOUBLER IAW SRM 51-43-04 AND 51-41-02
- [SDR R61A2024061400257](https://openairdocs.org/sdr/R61A2024061400257.md): Web · corroded · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > PAX CABIN FLOOR SUPPORT STRUCTURE WEB AT FRAME 19-20 LBL 10-24 FOUND TO HAVE CORROSION ON UPPER SURFACE. REPLACED FLOOR SUPPORT STRUCTURE IAW SRM 51-41-02 AND 51-43-04.
- [SDR R61A2024061400256](https://openairdocs.org/sdr/R61A2024061400256.md): Seat Track · corroded · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Fuselage, Seat/Cargo Attach Fittings
  > PASSENGER CABIN FLOOR SUPPORT STRUCTURE LEFT HAND TRACK AT LBL 10, FRAME 18 FOUND TO HAVE CORROSION ON UPPER SERVICE. REPLACED SEAT TRACK IAW SRM 51-41-01, 51-41-02 AND 51-43-03
- [SDR R61A2024060800255](https://openairdocs.org/sdr/R61A2024060800255.md): Doubler · cracked · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Wing, Attach Fittings
  > RH WING SLAT TRACK #6 CUT OUT DOUBLER FOUND CRACKED. REPLACED DOUBLER WITH REPAIR PART IAW SRM 51-41-02 AND 51-43-04 AND DRAWING 171-03066-403 AND SRM 47-49-02
- [SDR R61A2024061400254](https://openairdocs.org/sdr/R61A2024061400254.md): Smoke Barrier · damaged · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Passenger Compartment Equipment
  > SMOKE SEAL MIDDLE SECTION HAS BURN MARKS. REPLACED SEAL IAW AMM 25-84-01-400-801-A SUB TASK 25-84-01-420-003-A
- [SDR R61A202406080253](https://openairdocs.org/sdr/R61A202406080253.md): Rib · cracked · Jun 15, 2024 · N979RP · Emb ERJ170100SE · Wing, Rib/Bulkhead
  > (MAJOR) RH WING UPPER SKIN TRAILING EDGE RIB 11 INBD FOUND CRACK ON SKIN. REPAIRED IAW ETD2024-170-014753 REV A
- [SDR R61A2024060800260](https://openairdocs.org/sdr/R61A2024060800260.md): Floor Support · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > PAX CABIN FLOOR SUPPORT STRUCTURE DOUBLER AT FRAME 16 LBL 16 HAS CORROSION ON UPPER SURFACE. DOUBLER WAS REPLACED IAW SRM 51-41-02
- [SDR R61A2024060800259](https://openairdocs.org/sdr/R61A2024060800259.md): Floor Support · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > PAX CABIN FLOOR SUPPORT STRUCTURE DOUBLER AT FRAME 12-14 RBL 50 FOUND TO HAVE CORROSION ON UPPER SERFACE. REPALCED DOUBLER IAW SRM 51-41-02 AND 51-43-04
- [SDR R61A2024060800264](https://openairdocs.org/sdr/R61A2024060800264.md): Shear Tie · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Internal Mounting Structure
  > CFIII CORROSION FOUND ON SHEAR TIE AT FR 88 BETWEEN STR 27-28 RH. REPLACED TIE IAW SRM 51-41-01 AND 51-41-02
- [SDR R61A2024060800263](https://openairdocs.org/sdr/R61A2024060800263.md): Floor Support · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > CFIII FLOOR STRUCTURE FOUND CORROSION ON LONGITUDINAL BEAM BETWEEN FR 86-89 ON RT SIDE. REPLACED BEAM IAW SRM 51-41-01 AND 51-43-03
- [SDR R61A2024060800262](https://openairdocs.org/sdr/R61A2024060800262.md): Floor Support · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > CFIII FLOOR STRUCTURE HAS CORROSION FOUND ON GUSSET AT FRAME 90 RH SIDE. REPLACED GUSSET IAW SRM 51-41-02.
- [SDR R61A2024060800261](https://openairdocs.org/sdr/R61A2024060800261.md): Doubler · corroded · May 24, 2024 · N979RP · Emb ERJ170100SE · Fuselage Main, Floor Beam
  > PAX CABIN FLOOR SUPPORT STRUCTURE DOUBLER AT FRAME 16 LBL 16 HAS CORROSION ON UPPER SURFACE. DOUBLER WAS REPLACED IAW SRM 51-41-02
- [SDR R61A2024060800266](https://openairdocs.org/sdr/R61A2024060800266.md): Seat Track · corroded · May 23, 2024 · N979RP · Emb ERJ170100SE · Fuselage, Seat/Cargo Attach Fittings
  > CFIII IB LH SEAT TRACK CORRODED. REPLACED SEAT TRACK IAW SRM 51-44-01 AND 51-43-03
- [SDR R61A2024060800265](https://openairdocs.org/sdr/R61A2024060800265.md): Seat Track · corroded · May 23, 2024 · N979RP · Emb ERJ170100SE · Fuselage, Seat/Cargo Attach Fittings
  > CFIII RH SEAT TRACK CORRODED. REPLACED SEAT TRACK IAW SRM 51-43-03 AND 51-41-01
- [SDR R61A2024012300018](https://openairdocs.org/sdr/R61A2024012300018.md): Sensor · failed · Jan 20, 2024 · N979RP · Emb ERJ170100SE · Landing Gear Position and Warning
  > AFTER TAKEOFF, LANDING GEAR WOULD NOT RETRACT WITH AN ASSOCIATED EICAS MESSAGE "LG WOW SYS FAIL". THE MESSAGE WENT AWAY CLIMBING THROUGH 2000 FEET BUT WE DID NOT ATTEMPT TO RETRACT GEAR AGAIN. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R NLG WOW #1 SENSOR
- [SDR R61A2022093000617](https://openairdocs.org/sdr/R61A2022093000617.md): None · none · Sep 27, 2022 · N979RP · Emb ERJ170100SE · Leading Edge Slat Position Indicating System
  > SLAT FAIL EICAS MESSAGE ON APPROACH. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. RESET PER FIM AND ALL FAULTS CLEARED.
- [SDR R61A2021120300967](https://openairdocs.org/sdr/R61A2021120300967.md): Fan · burned · Dec 1, 2021 · N979RP · Emb ERJ170100SE · Air Distribution Fan
  > BURNING SMELL IN CABIN WHILE TAXIING TO THE GATE. R&R FWD E/E BAY FAN #1.
- [SDR R61A2021032700288](https://openairdocs.org/sdr/R61A2021032700288.md): Rib · cracked · Mar 13, 2021 · N979RP · Emb ERJ170100SE · Horizontal Stabilizer, Spar/Rib
  > LEFT H-STAB RIB 10A CRACKED. REPLACED IAW REPUBLIC EO J/C 170EO-55-10-0004_1 "MAJOR"
- [SDR R61A2021032700296](https://openairdocs.org/sdr/R61A2021032700296.md): Shear Tie · corroded · Mar 12, 2021 · N979RP · Emb ERJ170100SE · Fuselage Internal Mounting Structure
  > WHILE AC WAS IN FOR HVY CK FOUND FWD FUSELAGE FR16 SHEAR CLIP BTWN STR27R-28R HAS CORROSION. REPLACED FR16 SHEAR CLIP PN 170-03859-002 IAW SRM 51-41-01, 51-41-02. SEE AAR NRC# 4500867-1000-0131 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION
- [SDR R61A2021032700295](https://openairdocs.org/sdr/R61A2021032700295.md): Shear Tie · corroded · Mar 12, 2021 · N979RP · Emb ERJ170100SE · Fuselage Internal Mounting Structure
  > WHILE AC WAS IN FOR HVY CK FOUND FWD FUSELAGE FR17 SHEAR CLIP BTWN STR 25R-26R HAS CORROSION. REPLACED FWD FUSELAGE FR17 SHEAR CLIP PN 170-03868-002 IAW SRM 51-41-01, 51-41-02. SEE AAR NRC# 4500867-1000-0134 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION
- [SDR R61A2021032700294](https://openairdocs.org/sdr/R61A2021032700294.md): Shear Tie · corroded · Mar 12, 2021 · N979RP · Emb ERJ170100SE · Fuselage Internal Mounting Structure
  > WHILE AC WAS IN FOR HVY CK FOUND FWD FUSELAGE FR 17 SHEAR CLIP BTWN STR 27R-28R HAS CORROSION. REPLACED FWD FUSELAGE FR 17 SHEAR CLIP PN 170-35555-001 IAW RRM 51-41-01, 51-41-02. SEE AAR NRC# 4500867-1000-0132 FOR WORK PERFORMRED. AC REMAINS IN YQG FOR COMPLET
- [SDR R61A2021032700290](https://openairdocs.org/sdr/R61A2021032700290.md): Shear Tie · corroded · Mar 12, 2021 · N979RP · Emb ERJ170100SE · Fuselage Internal Mounting Structure
  > FWD FUSELAGE FR17 SHEAR CLIP BETWEEN STR 27L - STR 28L HAS CORROSION. REPLACED IAW 51-41-01 AND 51-41-02
- [SDR R61A202103240070](https://openairdocs.org/sdr/R61A202103240070.md): Panel Support · corroded · Mar 10, 2021 · N979RP · Emb ERJ170100SE · Fuselage Structure (General)
  > WHILE AC WAS IN FOR HVY CK FOUND CENTER FUSELAGE 3 PAX FLOOR STRUCTURE CORROSION FOUND ON FORMED SECTION FR 88 RBL36. REPLACED PANEL SUPPORT PN 170-86181-005 IAW SRM 51-42-01, 5143-03. SEE AAR NRC# 4500867-2000-0075 FOR DETAILS OF WORK PERFORMED. AC REMAINS IN
- [SDR R61A202103240069](https://openairdocs.org/sdr/R61A202103240069.md): Shear Panel · corroded · Mar 10, 2021 · N979RP · Emb ERJ170100SE · Fuselage Structure (General)
  > WHILE AC WAS IN FOR HVY CK FOUND CENTER FUSELAGE 3 PAX FLOOR STRUCTURE CORROSION FOUND ON SHEAR PLATE BETWEEN FR 86-87 BL 0-BL 6. REPLACED SHEAR PANEL PN 170-65928-001 IAW SRM 51-42-01. SEE AAR NRC# 45000867-2000-0071 FOR WORK PERFORMED. AC REMAINS IN YQG FOR
- [SDR R61A202103240068](https://openairdocs.org/sdr/R61A202103240068.md): Gusset · corroded · Mar 10, 2021 · N979RP · Emb ERJ170100SE · Fuselage Structure (General)
  > WHILE AC WAS IN FOR HVY CK FOUND CENTER FUSELAGE 3 PAX FLOOR STRUCTURE CORROSION ON GUSSET @FR 89 RBL 23. REPLACED GUSSET PN 170-60259-001 IAW SRM 51-41-02. SEE AAR NRC# 4500867-2000-0070 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION.
- [SDR R61A202103240067](https://openairdocs.org/sdr/R61A202103240067.md): Gusset · corroded · Mar 10, 2021 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > WHILE AC WAS IN FOR HVY CK FOUND CENTER FUSELAGE 3 PAX FLOOR STRUCTURE CORROSION FOUND ON GUSSET @FR 89 RBL11. REPLACED GUSSET PLATE PN 170-60257-001 IAW SRM 51-41-02 SEE AAR NRC # 4500867-2000-0069. AC REMAINS IN YQG FOR COMPLETION.
- [SDR R61A2021032700292](https://openairdocs.org/sdr/R61A2021032700292.md): Seat Track · corroded · Mar 9, 2021 · N979RP · Emb ERJ170100SE · Fuselage, Seat/Cargo Attach Fittings
  > FWD FUSELAGE RH I/B SEAT TRACK BETWEEN FR 12 - FR 20 HAS CORROSION. REPLACED IAW SRM 51-41-01, 51-41-02, 51-43-03 & 51-43-04
- [SDR R61A2021032700291](https://openairdocs.org/sdr/R61A2021032700291.md): Seat Track · corroded · Mar 9, 2021 · N979RP · Emb ERJ170100SE · Fuselage, Seat/Cargo Attach Fittings
  > FWD FUSELAGE LH I/B SEAT TRACK BETWEEN FR 12 - FR 20 HAS CORROSION. REPLACED IAW SRM 51-41-01, 51-41-02, 51-43-03 & 51-43-04
- [SDR R61A2021032700293](https://openairdocs.org/sdr/R61A2021032700293.md): Access Door · corroded · Mar 3, 2021 · N979RP · Emb ERJ170100SE · Fuselage Main, Plate/Skin
  > CF III WASTE ACCESS DOOR HAS CORROSION. REPLACED IAW AMM 53-03-60
- [SDR R61A2021032700289](https://openairdocs.org/sdr/R61A2021032700289.md): Rib · cracked · Mar 3, 2021 · N979RP · Emb ERJ170100SE · Fuselage Main, Structure
  > LH WHEEL WELL FR 52 CRACKED. REPLACED IAW SRM 51-41-01 AND 51-43-03
- [SDR R61A2020121500877](https://openairdocs.org/sdr/R61A2020121500877.md): Glowstrip · broken · Dec 13, 2020 · N979RP · Emb ERJ170100SE · Emergency Equipment
  > AISLE PHOTOLUMINESCENT STRIP BROKE OFF NEAR 8B. R & R PHOTOLUMINESCENT STRIP AT 8B, IAW AMM 25-20-23.
- [SDR R61A2019021970178](https://openairdocs.org/sdr/R61A2019021970178.md): Roller · lack of lube · Feb 17, 2019 · N979RP · Emb ERJ170100SE · Passenger/Crew Doors
  > L1 DOOR WOULD NOT OPEN FROM OUTSIDE. LUBRICATED DOOR ROLLERS IN L1 DOOR IAW AMM 52-11-22. OPS CHECK GOOD.
- [SDR R61A201902130172](https://openairdocs.org/sdr/R61A201902130172.md): Shear Panel · corroded · Feb 1, 2019 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > ***WHILE A/C WAS OUT OF SERVICE FOR HEAVY CHECK*** CENTER FUSELAGE III PASSENGER CABIN FLOOR STRUCTURE, CORROSION FOUND AT RH SHEAR PANEL BTW FR87-88. CENTER FUSELAGE III PASSENGER CABIN FLOOR STRUCURE BTW FR87-88, RH SHEAR PANEL REPLACED IAW E-170 SRM 51-42-0
- [SDR R61A2019021310174](https://openairdocs.org/sdr/R61A2019021310174.md): Beam · corroded · Jan 31, 2019 · N979RP · Emb ERJ170100SE · Fuselage Structure (General)
  > ***WHILE A/C WAS OUT OF SERVICE FOR HEAVY CHECK*** EXTERNAL CF I, FWD CARGO DOOR LOWER SILL BEAM FOUND CORRODED UNDER FWD FITTING. EXTERNAL CF I, FWD CARGO DOOR LOWER SILL BEAM REPLACED IAW E-170 SRM 51-43-04. A/C REMAINS OUT OF SERVICE FOR HEAVY CHECK COMPLET
- [SDR R61A2019021350173](https://openairdocs.org/sdr/R61A2019021350173.md): Cover Plate · corroded · Jan 25, 2019 · N979RP · Emb ERJ170100SE · Fuselage Miscellaneous Structure
  > ***WHILE A/C WAS OUT OF SERVICE FOR HEAVY CHECK*** AT FWD CARGO DOOR SURROUND, CLOSING PLATE FOUND CORRODED. AT FWD CARGO DOOR SURROUND, CLOSING PLATE REPLACED IAW E-170 AMM 20-10-01. A/C REMAINS OUT OF SERVICE FOR HEAVY CHECK COMPLETION.
- [SDR R61A201902130175](https://openairdocs.org/sdr/R61A201902130175.md): Skin · corroded · Jan 23, 2019 · N979RP · Emb ERJ170100SE · Fuselage Main, Plate/Skin
  > ***WHILE A/C WAS OUT OF SERVICE FOR HEAVY CHECK*** ***MAJOR*** EXTERNAL FUSELAGE SKIN, A/C IDENTIFICATION PLATE FOUND WRONGLY INSTALLED. AFTER INVESTIGATION OF A/C CORROSION FOUND NEAR FUSELAGE EXTERNAL SKIN MATING SURFACE WITH NAME PLATE AT FR 97-98. EXTERNAL
- [SDR R61A201803180379](https://openairdocs.org/sdr/R61A201803180379.md): Light · cracked · Mar 18, 2018 · N979RP · Emb ERJ170100SE · Emergency Lighting
  > FWD PASSENGER DOOR EXIT IDENTIFIER LIGHT SURROUND CRACKED. R & R FWD PASSENGER DOOR EXIT IDENTIFIER LIGHT IAW AMM 33-50-15. OPS CHECK GOOD.
- [SDR R61A201802240240](https://openairdocs.org/sdr/R61A201802240240.md): Slide · detached · Feb 24, 2018 · N979RP · Emb ERJ170100SE · Escape Slide
  > DURING TROUBLESHOOTING OF THE R2 DOOR ARMED INDICATOR, FOUND SLIDE ASSY FALLING APART FROM COMPOSITE BACKING PLATE. R & R THE R2 SLIDE ASSY IAW AMM 25-65-01.
- [SDR R61A201704200327](https://openairdocs.org/sdr/R61A201704200327.md): Warning Message · false activation · Apr 20, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > L1 PAX DOOR OPEN MASTER WARNING IN FLIGHT, PRESSURIZATION NORMAL, PHYSICAL INDICATORS NORMAL. PERFORMED INSPECTION AND OPS CHECK ON L1 DOOR IAW AMM 52-72-20. OPS CHECK GOOD.
- [SDR R61A201704140296](https://openairdocs.org/sdr/R61A201704140296.md): Sensor · out of adjust · Apr 14, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > L1 DOOR INDICATION MFD. ADJUSTED L1 DOOR WARNING SENSOR IAW MM 52-72-20. OPS CHECKED GOOD.
- [SDR R61A201704140295](https://openairdocs.org/sdr/R61A201704140295.md): Sensor · dirty · Apr 14, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > DOOR PAX FWD OPEN EICAS MESSAGE. CLEANED WARNING SENSOR IAW AMM 52-42-20. OPS CHECK GOOD.
- [SDR R61A201704120282](https://openairdocs.org/sdr/R61A201704120282.md): Sensor · dirty · Apr 12, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > DOOR PAX FORWARD EICAS MESSAGE. CLEANED WARNING SENSOR IAW AMM 52-72-20. OPS CHECK GOOD.
- [SDR R61A201704080273](https://openairdocs.org/sdr/R61A201704080273.md): Bracket · out of adjust · Apr 8, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > DOOR PAX AFT OPEN L2 DURING FLIGHT, GOOD PRESSURE. ADJUSTED L2 DOOR SENSOR BRACKET IAW AMM 52-12-00. OPS CHECK GOOD.
- [SDR R61A201704050269](https://openairdocs.org/sdr/R61A201704050269.md): Sensor · failed · Apr 5, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > AFT PAX DOOR OPEN EICAS MESSAGE IN FLIGHT. R & R THE LATCH WARNING SENSOR IAW AMM 52-72-21. OPS CHECKED GOOD.
- [SDR R61A201704030264](https://openairdocs.org/sdr/R61A201704030264.md): Warning Message · false activation · Apr 3, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > AFT PAX DOOR DISPLAYED AN OPEN MESSAGE ON EICAS IN FLIGHT. PERFORMED PASSENGER DOOR LOCK ADJUSTMENT TEST ON L2 DOOR, OPS CHECK GOOD IAW AMM 52-12-52.
- [SDR R61A201704010262](https://openairdocs.org/sdr/R61A201704010262.md): Sensor · out of adjust · Apr 1, 2017 · N979RP · Emb ERJ170100SE · Door Warning System
  > AFT PAX DOOR DISPLAYED OPEN DURING CRUISE, FL300. PERFORMED ADJUSTMENT OF AFT PAX DOOR WARNING SENSOR IAW AMM 52-72-21. OPS CHECKED GOOD. ALL INDICATIONS NORMAL.
- [SDR R61A201703120213](https://openairdocs.org/sdr/R61A201703120213.md): Light · missing · Mar 12, 2017 · N979RP · Emb ERJ170100SE · Emergency Lighting
  > ROW 2A EMERGENCY LIGHT STRIP MISSING. ADJUSTED ROW 2A THE STRIP IAW AMM 33-50-21. OPS CHECK GOOD.
- [SDR R61A201703070198](https://openairdocs.org/sdr/R61A201703070198.md): Indicator · out of adjust · Mar 1, 2017 · N979RP · Emb ERJ170200LR · Passenger/Crew Doors
  > AFT LEFT PAX DOOR GIRT BAR INDICATOR NOT WORKING. ADJUSTED L2 GIRT BAR FLAG REF CMM 52-12-22. OP CK GOOD.

Next page: https://openairdocs.org/aircraft/N979RP/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 n_number = 'N979RP' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N979RP/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.