| | GLBA LE DB FLIGHTS 2026 | CHARLES D SCHROTH | $14,839 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 4, 2026 | Jun 4, 2026 | Dec 31, 2026 |
| | FIXED WING ON CALL FLIGHT SERVICES FOR NPS GLBA BUILDING FLIGHTS 2026 | CHARLES D SCHROTH | $7,960 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 13, 2026 | May 24, 2026 | Dec 31, 2026 |
| | FIXED WING ON CALL FLIGHT SERVICES FOR NPS GLBA TRAILS FLIGHTS 2026 | CHARLES D SCHROTH | $9,950 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 13, 2026 | May 24, 2026 | Dec 31, 2026 |
| | GLBA DB SAR/EMERGENCY FLIGHT 09-25 | CHARLES D SCHROTH | $1,890 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Dec 3, 2025 | Sep 28, 2025 | Sep 29, 2025 |
| | ALASKA FIXED WING ON CALL - USGS SVC & MAINT STREAM GAGE ALSEK RIVER | CHARLES D SCHROTH | $5,218 | DEPARTMENTAL OFFICES | US GEOLOGICAL SURVEY | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 18, 2025 | Apr 24, 2025 | Nov 1, 2025 |
| | ALASKA FIXED WING ON CALL FOR NPS GLBA BUILDING FLIGHTS 2025 | CHARLES D SCHROTH | $13,914 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 17, 2025 | May 1, 2025 | Sep 30, 2025 |
| | ALASKA FIXED WING ON CALL FOR NPS GLBA TRAILS FLIGHTS 2025 | CHARLES D SCHROTH | $11,088 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 17, 2025 | May 1, 2025 | Oct 15, 2025 |
| | ALASKA FIXED WING ON CALL FOR NPS GLBA LE FLIGHTS 2025 | CHARLES D SCHROTH | $6,957 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 17, 2025 | May 1, 2025 | Dec 31, 2025 |
| | ALASKA FIXED WING ON CALL - NPS DRY BAY WEATHER AND CLIMATE 2024 | CHARLES D SCHROTH | $4,477 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Aug 14, 2024 | Aug 15, 2024 | Dec 30, 2024 |
| | NPS BEAR MANAGEMENT FLIGHTS 2024 | CHARLES D SCHROTH | $0 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jul 16, 2024 | Jul 16, 2024 | Dec 27, 2024 |
| | GLBA VRP FLIGHTS 2024 | CHARLES D SCHROTH | $5,068 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jul 1, 2024 | Jul 1, 2024 | Apr 18, 2025 |
| | NPS CONCESSIONS FLIGHTS 2024 | CHARLES D SCHROTH | $3,378 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 21, 2024 | Jun 21, 2024 | Nov 27, 2024 |
| | NPS BRUSHING FLIGHTS 2024 | CHARLES D SCHROTH | $13,936 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 17, 2024 | Jun 17, 2024 | Jan 6, 2025 |
| | ALASKA FIXED WING ON CALL FOR NPS GLBA ARCHEOLOGY FLIGHTS 2024 | CHARLES D SCHROTH | $5,068 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 7, 2024 | Jun 7, 2024 | Dec 3, 2024 |
| | USGS - ALESK RIVER STREAM GAGES | CHARLES D SCHROTH | $22,931 | DEPARTMENTAL OFFICES | US GEOLOGICAL SURVEY | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 21, 2024 | May 21, 2024 | Dec 18, 2024 |
| | ALASKA FIXED WING ON CALL FLIGHTS FOR NPS GLBA DRY BAY LE FLIGHTS 2024 | CHARLES D SCHROTH | $9,553 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 17, 2024 | May 24, 2024 | Sep 11, 2024 |
| | AK FW OC - NPS GLBA TRAILS FLIGHTS 2024 | CHARLES D SCHROTH | $13,034 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 25, 2024 | Apr 25, 2024 | Dec 2, 2024 |
| | ALASKA FIXED WING ON CALL - GLBA BUILDING FLIGHTS 2024 | CHARLES D SCHROTH | $5,048 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Apr 25, 2024 | Apr 25, 2024 | Sep 30, 2024 |
| | ALASKA FIXED WING ON CALL - GLBA BEAR MANAGEMENT FLIGHTS | CHARLES D SCHROTH | $0 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | Jun 21, 2023 | Jun 21, 2023 | Sep 30, 2023 |
| | ALASKA FIXED WING ON CALL - CYCLIC BRUSHING OF DRY BAY 2023 | CHARLES D SCHROTH | $15,466 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 16, 2023 | May 16, 2023 | Sep 30, 2023 |
| | ALASKA FIXED WING ON CALL | CHARLES D SCHROTH | $14,223 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 16, 2023 | May 31, 2023 | Dec 31, 2023 |
| | ALASKA FIXED WING ON CALL - GLBA CONCESSIONS FLIGHT 2023 | CHARLES D SCHROTH | $3,214 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 16, 2023 | May 16, 2023 | Sep 30, 2023 |
| | GLBA SEA OTTER HARBOR SEAL AERIAL SURVEY | CHARLES D SCHROTH | $26,674 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 15, 2023 | Jun 1, 2023 | Dec 4, 2023 |
| | ALASKA FIXED WING ON CALL | CHARLES D SCHROTH | $4,821 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 15, 2023 | May 15, 2023 | May 22, 2024 |
| | ALASKA FIXED WING ON CALL - GLBA BUILDING FLIGHTS 2023 | CHARLES D SCHROTH | $20,411 | DEPARTMENTAL OFFICES | NATIONAL PARK SERVICE | — | 481211Nonscheduled Chartered Passenger Air Transportation | V221TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: PASSENGER AIR CHARTER | May 15, 2023 | May 15, 2023 | Sep 30, 2023 |