---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-074105"
form_type: "8-K"
ticker: "RJET"
cik: "0000810332"
company_name: "REPUBLIC AIRWAYS HOLDINGS INC."
filed_at: "2023-03-17T23:59:59+00:00"
generated_at: "2026-06-17T23:57:41.106443+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Mesa Air Group dismisses EY as auditor, appoints RSM US LLP for FY2023

## Summary
- Dismissed EY as independent auditor effective March 17, 2023, approved by Audit Committee.
- EY's audit reports for FY2022 and FY2021 were unqualified; no disagreements over accounting principles.
- Previously reported material weaknesses in internal controls related to net operating loss and asset impairment accounting.
- Appointed RSM US LLP as new independent auditor for fiscal year ending September 30, 2023.
- No prior consultations with RSM on accounting or auditing matters.

## SEC filing metadata
- accession: 0001193125-23-074105
- form_type: 8-K
- ticker: RJET
- cik: 0000810332
- company_name: REPUBLIC AIRWAYS HOLDINGS INC.
- filed_at: 2023-03-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/810332/000119312523074105/0001193125-23-074105-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/810332/000119312523074105/d478964d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-074105
- JSON: https://secwatch.observer/filing/0001193125-23-074105.json
- Plain text: https://secwatch.observer/filing/0001193125-23-074105.txt

## Key facts
- Auditor Changes
  REPUBLIC AIRWAYS HOLDINGS INC. dismissed Ernst & Young LLP as its auditor.
  - Action: dismissal
  - Auditor: Ernst & Young LLP
  - Successor: RSM US LLP
  source text: On March 13, 2023, Mesa Air Group, Inc. (the “Company”), upon the approval of the Audit Committee (the “Committee”) of the Board of Directors of the Company, notified Ernst & Young LLP (“EY), the Company’s current independent registered public accounting firm, that it would be dismissed from that position effective March 17, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/810332/000119312523074105/0001193125-23-074105-index.htm
- Auditor Changes
  REPUBLIC AIRWAYS HOLDINGS INC. engaged RSM US LLP as its auditor.
  - Action: engagement
  - Auditor: RSM US LLP
  source text: On March 17, 2023 the Committee appointed RSM US LLP (“RSM”) as the Company’s independent registered public accounting firm for the Company’s fiscal year ending September 30, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/810332/000119312523074105/0001193125-23-074105-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.